I want to be able to overclock to 4.5 at least and maintain it. I don't expect to desire sli or anything like that in the future. I figured 600w would be good enough, but I don't know a lot about ocing. Also, I noticed a lot of psu included in their titles that they worked with the sandy bridge. Anyway, you guys are great, and I appreciate any help you can offer. Remember cheap, but not crap, if that's possible.
lol where were you a few weeks ago. Sadly I've already bought everything but the case and psu. As for overclocking, I wanted to overclock for other reasons besides gaming, so I hope that's still okay. I guess my next question is, since I've already bought everything but the case and psu, what would I need to get the full power of my 2500k? Also, will those psu be good for overclocking?
It doesn't have a second gpu power cable so you will have to feed it from the molex extension.
Any of the 3 mentioned PSUs will do perfectly fine with OC. The only thing that should be noted is that if you decide to go replace your gfx card along the road the 450watt won't suffice. Also for xfire it won't suffice either. But if this is all you are going to spend for a good 2-3 years then i don't see the point in going any higher in wattage.
Perhaps bottleneck wasn't a good expression to use. What i meant is that for a 6870 an i5 2400 is enough to run it at it's full potential and then some more. The cpu power demanded by the 6870 to run at it's fullest is a little bit above the i3 2100. I am looking at the system as a whole you see trying to have most of the components en-par and what i saw is that you have a killer cpu with an average card (that will play everything for a long time, no doubt), a killer motherboard, a nice set of ram that could be doubled in size for a small amount of money (compared to the whole) and a slow-ish and small hdd.
BTW i never suggested the TX3 for an OC 2500k, it was a suggestion for the 2400 who doesn't even really need it.
Your system will run fine for what you want it, i was just pointing out that one leg is shorter than the others.