I'm buying a 2.0 system on a budget and I have already ordered a Dayton APA150 amp. The last remaining component I need is speakers. I've been hearing great things about the Pioneer Andrew Jones SP-FS52 floorstanders, but at $250 for the pair, they are at the highest end of my budget range. If anything is comparable in sound, but cheaper I'd love to hear about them.
Also, the specs I've read say the frequency response goes down to about 40 Hz. I am not usually a huge fan of bass, but I'd like to get a sense of whether I'll be missing that lowest audible octave. I haven't seen any frequency response curves, so I don't know how sharply the response falls off below 40 Hz.
I've only heard the Pios in Best Buy, but they sounded pretty good for a store demo.
For budget towers, I think there are 2 clear choices. Either those AJ Pios that mentioned or the Infinity Primus 363.
I think those Pios can be found cheaper if you are patient.
Also, the Primus is often sold at Fry's (north Austin) for $99 each, just wait a few weeks and the sale will come back. For most music, the Primus won't need a sub. However, the Primus measures more like 4ohm speakers, so that might be tough on that Dayton amp.
If those are really pushing your budget, then consider bookshelves, but expect to give up some bass.