Those inexpensive satellite speaker packages are really meant for little tiny rooms and moderate volumes. In other words small bedrooms, small dorm rooms, tiny apartments with whiny neighbors, or grandma's house - if grandma isn't an Audioholic
. The other problem with satellite systems is that the tiny satellites have to crossover to the subwoofer way too high which gives you a ping-pong like effect because you hear the source of the sound move from the speakers to the subwoofer and back. You really don't want to have to crossover to the subwoofer any higher than 80hz which is the point at which it's hard to tell where the bass is coming from. If I were you I would start with a far better quality 2.0 system and add the other bits as money allows, that way you're adding bits instead of spending money twice to replace bits.
If it were me and I had a $800-1000 budget I'd probably go with a Denon
AVR-1712 ($400 shipped) and a pair of Infinity
P362 towers ($200ea shipped). The P362s are very easy to drive, play deep enough to get by without a subwoofer for the time being, and a provide a whole lot of bang for the buck. They're cheap because they're an older model.
Once you've saved up more money I'd invest in a really good subwoofer and don't skimp on the sub,
figure $600 shipped for up to a 3000cuft room. For the third phase I'd buy the matching
PC350 ($150 shipped) center, although you may want to snag now while it's cheap. A pair of
P152 bookshelves ($75ea shipped) would be a good match as surrounds. That gives you a really good 2.0 system for $800 or 3.0 for $950. 5.0 for $1100 or a nice 5.1 system for $1700ish depending on room size instead of a $1000 system that you probably won't be happy with.