If you want buttons/knobs/switches, check out the latest portable DVD-RAM option from fostex. Records to a miniDVD RAM at 6 channels of 48k/16bit, or combinations up to 192k. It has USB & firewire and can download the audio directly into an avid system.
A steal at US$16,000.
This is the pro market though. It does funky stuff like put a warning tone thru the headphones if the levels are approaching clipping, and has input filtering on each channel.

Is that what you're looking for?