AstroTC I did a little more research after your post and it seems like the i5-2500K and the i7-2600K are very similar, thought he 2600K is a but better I might be starting to agree it is not worth the extra $100.
Any other opinions on this?
If this is mostly a gaming PC, then go with the i5 2500k. If you are going to use software that supports hyperthreading (like video editing) then go with the i7 2600k. I do HD video editing with Sony Vegas Pro and it supports hyperthreading, so I went with the i7.