Hey thats a really good idea! How long does it take to get started with that? Do you find a long lead time from signing up to building a reputation to getting a lot of gigs?
Depending in the gigs you offer your experience may differ, I do python/perl/sh scripts and sysop tasks and after a month I started receiving enough gigs a month (5-8) to pay my digital bills.
I think logo designers, web developers and translators get a lot more traffic. I just recently was upgraded to 1st level seller after 3 months, so I think it's relatively fast.