+1 on the MOTU 2408 MK3 – I have never had any problems in 3-4 years!
I use M-Audio Profire 2626, very good interface! no problems at all!http://www.m-audio.com/products/en_us/ProFire2626.html
Last December, I compared Presonus 2444, AKAI EIE and Focusrite Scarlett 2i4.
Presonus had the best latency, but all in all the three interfaces are pretty comparable around the 200,- Euro mark. Went for the Focusrite in the end which sounded best for my Acoustic Guitar.
Now I need more than 2 Inputs and Focusrite just released two new interfaces, but I might wait and step up a class and get a RME.