Can I assume by the lack of comments that the answer is:
"Put the checkbook away!"
The $1k, $500 and $250 monthly prizes for best Homemade Games are not appealing to most indie devs? I can certainly see that - Probably better suited for Flash Game developers.
See, even if no one responds, it still helps.
Any new or old indie games out there, would love to feature on Grab.com - If you add it, let me know and I'll make sure it's featured.