If you are patient and can keep an eye on the ads here on a regular basis, I bet you could upgrade both amp and speakers and have a really nice system. I'd look for Soliloquy 5.3's (because the company is no longer in business all their speakers seem to be going for a song). I've seen them for $600. Take the balance and pick up a used Portal Panache...OK, you'll need to go a few hundred more, but you'll be cooking with gas with that combination. Only downside is no remote for the amp, but if you can live with that, the combination would be a significant upgrade, IMO.
Marco
Marco