If you only need a stereo in/out, want very high quality and have about $500 to spend I'd recommend the Tascam UH-7000. Wonderful preamps - no DI but $20 at guitar Center will satisfy that requirement. Also high latency (the time the drivers take to route the sound in and out of the computer). No inserts. But the sound quality is the best you are going to get w/o spending +$1000.
If you are only interested in less expensive units, just about any of the major players should work. Motu has a new line out as does Tascam (Gibson owns it and Cakewalk). Roland and Focusrite both have a lot of users here. Just figure out how many ins you need to record at once and how much you can spend. Each of the above companies should have similar units at your price point and find the best match. Then ask here about that unit.
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