All Bose products are not cheap and you will in 99% of ALL occasions be able to find a better product for cheaper or the same price.
My recommendation with reciever and subwoofer would be this:
Harman/Kardon AVR-125 reciever - $200 (
www.soundcity.com)
Klipsch Quintet 5 piece speaker set - $350 (bestbuy)
Infinity Entra Two subwoofer - $350 (
www.soundcity.com)
Soundcity includes FREE SHIPPING with these products so don't worry about that.
The Infinity sub I think is a nice piece, it goes down to about 28Hz, not the lowest but decent for the price and I don't think you could do much better than that for the price. I also had heard this sub and it was very clear and distinct.
The Harman/Kardon AVR-125 is a refurbished unit SoundCity is selling, but don't be afraid to buy it! Harman/Kardon gives you the FULL warranty with there refurbished products and the AVR-x25 line is phasing out because this years model just came out, so I recommend this as a great buy.
Now speakers are another subject where I would say take a listen. I think what would suit best in this price range is satellite speakers. There price is not incredibly expensive, and good ones can pump out alot of sound. The Klipsch Quintets sound very nice to me and I definantly like them as I own a pair myself from when The Wiz went out of business.
I hope this helps you with your Home Theater... The total cost for all of these components is under your $1000 budget at $900. Enjoy!