I'm trying to decide whether to get the cx430 or the s12-ii 520, the cx430 is $58 while the other one is $91
I wont SLI for awhile so the extra 6-pin really isn't necessary, although it would be nice, I'm going for a budget gaming build so a cheaper psu would be much better without sacrificing quality, then I could use the extra money to buy another component
If you're using a 6770, you'll never use SLI as it's an nVidia only tech. You'd be using Crossfire. If you have any intention of utilizing Crossfire though, it would be more cost effective to buy a capable PSU from the start, however, I wouldn't recommend a 520watt PSU for the scenario. If you have future plans to make use of a multi-card configuration, you'd be better served by a 600watt power supply.
If you want a tad more power for possible future crossfire the Antec HCG-620... but to be honest. I wouldn't go dual 6770's but would step up to the next higher single card as an upgrade instead. A 6850 or a 6870 would be a much better upgrade than a second 6770.
If you have no plans to do Crossfire I would do the HCG-520.
eta: the HCG-520 should give you plenty of room to do some oc'ing.
just rang my grandad, he's at my uncles place who owns a computer business, and my uncle might be able to give be a few components for free, which is awesome, so I'll wait and see wat my grandad brings bak ^.^
until then I'll look up reviews on psu candidates, thanks heaps for ur help guys