I have played budget belcher for about the past half-year. I have played FCG, U/G madness, and other budget decks, but this one has worked the best for me.
Budget Belcher:
Mana: (31)
4x Land Grant
4x Tinder Wall
4x Birds of Paradise
4x Elvish Spirit Guide
1x Bayou
4x Dark Ritual
2x Cabal Ritual
1x Lion's Eye Diamond
1x Sol Ring
1x Mana Vault
1x Grim Monolith
1x Chrome Mox
1x Mana Crypt
1x Channel
1x Lotus Petal
Tutors: (7)
1x Demonic Tutor
1x Vampiric Tutor
1x Mystical Tutor
1x Demonic Consultation
1x Enlightened Tutor
1x Tinker
1x Tainted Pact
Cards that Win: (11)
1x Darksteel Colossus
4x Goblin Charbelcher
1x Necropotence
1x Yawgmoth's Bargain
1x Yawgmoth's Will
1x Wheel of Fortune
1x Memory Jar
1x Windfall
Utility (10)
4x Goblin Welder
4x Chromatic Sphere
1x Naturalize
1x Xantid Swarm
1x OPEN
Mana: Pretty standard stuff. I have tested both, and never have wished to switch to one land. Birds, in a moxless build, provide a key source of reusable mana, adding also color fixing in a 5c deck. They add very needed consistency.
Tutors: Also standard. No Spoils or Plunges, as they have proved to me to be not worth the life loss, as this deck most often casts a tutor and has to wait a turn before winning. Spoils might go back in for the open slot, if I don't find anything else.
Cards that win: Bargain is an opinion choice, as it is not reliably cast, but when it is cast, does win that turn. Colossus is due to this deck's weakness to Null Rod, as this deck has potentially about 5 Tinkers, and it is easier than finding and casting Naturalize and then playing Belcher. Mind's Desire is uncastable.
Utility:
Four Welders go a LONG way in shoring up the control matchup, drastically improving this deck's chances against 4CC, Tog, Landstill, and random control.
Naturalize is there for random artifacts/enchantments, is the other way of getting around Null Rod.
Xantid: Good disruption, more on board, fills last slots, see Welder's explanation, incredible counterbait.
Living Wish, with Workshop not available, and Academy not nearly as helpful, these were cut.
OPEN: What to put in here? Xantid, Spoils, Pact, what?
SB:
3x Xantid Swarm
4x Duress
4x Chalice of the Void
Hurkyll's Recall?
Naturalize?
Oxidise?
Tormod's Crypt?
Ground Seal?
That is another point that needs to be improved.
Why this deck should be played: It has more raw power and brokenness than FCG or Madness budget, goldfishing in 2.6 turns. It still defeats aggro, and has a decent game against control. This is why, despite weaknesses against combo and prison, I think that it is a viable budget deck.
Please post suggestions, etc.
Edit: Here are some sample goldfishes:
Hand: Land Grant, 2 Dark Rituals, Cabal Ritual, Chromatic Sphere, Windfall, Tinder Wall.
Draw Tainted Pact, Land Grant, fetching Bayou, double Dark Rit: BBBBB, play and sac Chromatic Sphere, drawing Spoils: BBBU. Spoils-ESG, I lose seven, remove ESG, play Tinder Wall, sac it, Tainted Pact, get Lotus Petal, play it, Cabal Rit: BBBBBU, Windfall: BBB, draw Cabal Rit, 2x Tinder Wall, Birds, Naturalize, Wheel, Bargain. Cabal Rit: BBBBBB, play Bargain, and either slow-play and win next turn or Bargain for 13 and win.
Hand: Memory Jar, 2x ESG, Channel

, Tinder Wall, Spoils, Dark Rit. Channel-Memory Jar, (15 life)-Draw: Yawgmoth's Will, 2x Birds, Bargain, Consultation, Crypt, Sphere. Play Crypt, blow Sphere for B, draw Sphere, play and blow for B (13), draw Lotus Petal, play and blow for G, Yawgmoth's Will (11): BG, replay Petal, play Jar (6) Blow to find Mana Vault, Dark Ritual, Demonic Tutor, Tinder Wall, Sol Ring, Wheel of Fortune, Necro. I blow Petal for R, play Mana Vault and Ring (5): 3BGR, Dark Rit: 3BBBGR, Tutor-Belcher:2BBGR, use four life- 6BBGR, Belcher, Wheel, draw Land Grant, Grant, and activate (SO PERFECT)
Thses were the first two goldfishes I did, and, while not fully representative of a typical game, they demonstrate the brokenness of the deck. The last one shows one of my typical paths to victory-Use a random broken card and go nuts. It also shows how I have room for 2-3 random slots, as the deck normally uses only 4-5 cards in hand. While Birds seems to be a dead card, in real life, rather than goldfishing, it has more than proven its worth, also allowing the off-color cards.