Sorry for the vagueness. Really I was trying to compare the i7 930 for $200 at microcenter vs. any of the smaller cpus (such as the i5). I'm having a hard time justifying not springing for the i7 930 at that price. What do you guys think?
It depends on many things.
Here are some advantages of going with X58 chipset
1_6-core CPU support
2_Better OC'ng capability
3_dual 16x SLI/CF(which doesn't have much of a difference with dual 8x mode of P55)
The only advantage that a P55 build has,is that it offers similar performance(although i7 930 is a little faster here) and costs lower.