Now that my GPU mining rig will be made obsolete, where to turn? With the return from GPU mining likely to be affected by ASICs, where can miners turn their machines? Should I become a pro gamer? Join a rendering farm for cash (do they exist?) and let Disney use my rig to make toystory 4? Donate it to SETI@HOME or FOLDING@HOME? Donate it to an Anonymous botnet? Join a spamming farm used to bombard Bitcoin dev's with requests to switch double-SHA256 for double-MD5 in the code?

In short, what serious alternatives are their for profit or just putting to good use mining rigs?
Vanity mining for example over at my Vanity Pool. Thanks to split-key vanity addresses anyone can request a vanity address without compromising their security, set their own bounty, and anyone with a mining GPU can try solving the work and claiming the bounty.