New Desktop

The only problem I have with the combo is this:
"Newegg.com cannot guarantee the compatibility of Combo items. Please contact the manufacturer(s) directly if you have issues or concerns regarding compatibility."
Does that mean that the components may not be compatible? And to elaborate this even more, the power supply they offer says "compatible with i7".
But the other list is fine, it's actually pretty much what I wanted; just one question, is there too much of a difference between 2.8 Ghz and 3.4?