a $ 700 solution
go to Crutchfield.com
they are clearing out last year's middle line of Inifinity speakers (just type Inifinity in the search line).
you can pick up some Alpha 50 main towers for $ 600 or the smaller 40's for $ 500. They throw in a set of Entra 150's (smaller bookshelf speakers) for the surrounds for free. Then pick up the really good Alpha Center for $ 150, or the even better 37C for $ 250, but the 37c is a mother load at 33 pounds, so be careful where you put it. You'll be short a sub, but this will get you by till you can save up a little more cash.
If you insist on a sub, or want to match exactly all the way around, get some Alpha 20's for mains (medium sized book shelf speakers for $ 200) some Alpha 10's (slightly smaller) for the rear at $ 180, a PS8 sub for $ 180, and the Alpha Center for $ 150 (in black, the cherry's about $ 30 more).
They ship free over $ 300 in the continental states. All the speakers have the ceramic cones, and will give you great sound for years for the amount of money you spend.
Quick note on the sub, if you get the Alpha 50's, their main drivers are the same size as the sub, and each speaker has two of them. ANother quick note, if you get the 50's, free 150's, and either of the centers, you'll be saving nearly the same $ 700 you are willing to pay, based on last year's prices. All the stuff is under factory warranty and Crutchfield will pay to ship it back if you want to upgrade within 30 days.
Either set-up won't be scaring any of the true audiophiles on this site, but they will leave the Bose shaking in their shoes...
don't forget to go to Axiom Audio or Impact Acoustics and get some good 12 gauge wire to tie it all together at a fraction of the Moster cable prices.