I bought an 8 channel, Alesis MultiMix 8, a few days ago.
It has a USB input, and built-in effects for vocals.
I'm really considering bringing it back to GC. It sounds tinny, and the bass response on my system is lacking now. The only thing that has changed is the mixer....BTW, I was using a 4 channel B-Ringr Xenyx 802, And i like that one better than the Alesis.....
Update...
The lacking bass response was MY fault....Had the mixer set up pretty good tonight...Might just keep it after all