i'd be in. as long as i didn't get more than two of the same beer styles in a row.
and as for the donating end, i think there should maybe be a multi-tiered level for entries: say one for begginer brewers(or beers that you don't feel are your best) with that category looking for feedback and recomendations. the second for experamental/unusual/moderately good brews: something to show off, spark curiosities, styles not usually avaliable. and the third for those beers you're really proud of-personal bests, award winners, and styles that need extra long conditioning.