Budget amp for NHT 2.5i - suggestions?

Hi guys, I just picked up a pair of NHT 2.5i towers, but I don't have an amplifier for them yet. Just wondering if you had any suggestions, especially if any of you are currently running these speakers or have had them in the past.

Apparently these speakers tend to be on the bright side, and they like lots of power to perform optimally. Some seem to use them with tube amps to decrease the brightness, but others seem happy with solid-state as well.

I got a good deal on these and am on a pretty tight budget, so I would probably buy a used amp, but I'm open to anything. Any suggestions or info would be great. Also, I will probably use my computer for music so I would have to buy a DAC as well (suggestions? maybe good amp/dac pairs?) Thanks!