Well, price, as you might guess, doesn't always correlate with quality.... I've actually been impressed with some of the Behringer stuff [which I've personally tested against better models in my studio].... but if your looking to go with a bigger name brand, as opposed to the more generic stuff (like Presonus which is a nice brand).... I'd reccomend the Aphex 207 (although if you've got the money, the 1100 which has digital.
The Aphex 207, which offers two channels of compression, has a very low-noise instrument input, and is modestly priced at roughly $400 (current selling price as of this message)... The Aphex has one of the lowest noise characteristics on the market and is very close in spec to the multi-thousand dollar brands which are only marginally better in that respect... In fact, the Aphex 1100 actually beats vitrtually all the best models for noise (including the infamous top of the line Millenium, etc...).
If your looking for a little harmonics (aka "color") in your preamp, the Aphex 207 is sure to please... The unit will give a bit of that... The unit is sonically clean as far as thermal noise goes, but it intentionally adds a bit of distortion for the customer looking for the little bit of 'warmth'.