[kennyt]

Tough to answer without more information.

How much do you want to spend?

What do you need/want? Do you want an all in one unit (DVD/Pre/amps) a receiver/Blu-ray/DVD player? Separate pre/pro, amps, players?

Room size?

What do you expect? Do you want bass to shake the walls or a simple surround system? Are you looking for MC audio or two channel only?

Also how much of a tweaker are you? DO you want to set it up once and never do it again or does the concept of upgrading appeal to you?