I've been playing R/G Beatz! since 2005 and I have twisted it a lot. I began with the classic version with invernal orb and rancor, but that configuration lacked of the surprise element needed in an budget aggro deck.
After a lot of time of thinking and testing, the final version of my deck looks like this:
R/G Beatz v5.0 by Ghoulax
Creatures
4 Grim Lavamancer
4 Kird Ape
4 Burning tree Shaman
4 Scab-Clan Mauler
4 Wild Mongrel
2 Basking Rootwalla
Instants
4 Lightning Bolt
4 Sudden Shock
3 Fireblast
1 Fork
Sorceries
4 Chain lightning
Lands
3 Mountain
4 Taiga
4 Wooded Foothills
3 Wasteland
4 Stomping Grounds
1 Strip Mine
3 Forest
With this configuration I`ve been able to get into every top 4/8, at my local store Vintage tournaments. Since I haven't played a lot latelly because of med-school I couldn't get any tarmogoyf and I think that this big mosnter will take the place of the SCM.
It's a fun deck to play and it's consistent as well...
Greets to you all.