Well, the visual appearance is relatively important, as is the fact that the center channel won't totally sound-match the front speakers...
Okay, so I've been doing a little more research. The speakers I currently have are good, but they're old and I think it's time to move on... I know that the rule of thumb is a 5.1 speaker set under $500 can't be all that, but that's my budget. I could get the $1000 (close to MSRP) Infinity tss-1100 for about $450-$500 (factory refurb) or try to create a system on my own. I've seen people recommend the JBL Northridge series (E30 or E35), but I'd have no idea what sub or center channel to add with that.
The main thing to consider is that this is not going to be my final speaker set. I live in an apartment now and need the best that I can afford. When I move into a house, and can afford it, I will "build" a high-quality system.
Right now, though, I just want the best that $500 can get me. I looked at the avs123.com speakers and they look great, but the minimum price for a 5.1 set on the is over $700, so... I feel like I'm left choosing between the Infinity TSS-1100 and the HSU VT-12 with an STF-1 (or 2).
brendy, as you've had both the tss-750 and the VT-12, could you give me your thoughts on them? The VT-12 is supposed to have a warmer sound than other 5.1 "packages," yet I know you switched from the VT-12 to a TSS-750...