re: Should I buy an i7 3770K or wait for the Haswell to come out?

Microcenter will generally beat online processor prices, often with CPU/Mobo combos advertised. The trade-off is that you have to make it out to a physical location and pay sales tax. They're banking that you'll be enticed to buy your other components in-store.

I put off my first build until Sandy Bridge launched, within a month or so of AMD's HD 69xx series launch. My mobo had one of the faulty chipsets that shipped with the first batch. I guess that's the tradeoff of being an early adopter, along with timing CPU and GFX product launches if you want to stay current.