Wow, thanks for the heads up- I've never seen that section before.
However, while they provide better RAM and a few other bells my complete build including everything(except OS) comes in at less than those kits- the i5 kits at least.
I'm looking into the mobo suggested above, I've never used ASRock and would feel more comfortable with Gigabyte or Asus(preferably)
Otherwise, I'm not too concerned about the CPu speed as I'll OC it and with that awesome heatsink I'm sure I can pull a good amount out of it.
I've got an i7 sandy that originally came at 2.3(I believe) and it's been running @4.2GHz since Summer 09 on air cooling with zero issues.