I'd get a huge plot of land and a permit to house unwanted cats. I'd even have an outdoor area (fenced, with shelters, so that trapped (and nutered of course) ferrals can still live mostly outside, but away from nasty things like cars! I'd also invest in something that would get a good return, that way if donations were low, I could still fund the shelter. My goal would of course get every kitty I could a furrever home but at the same time no cat would have to be rushed out the door!

I'd of course splurge on a decient house...and a DeLorean and of course the biggest DJ sound system I could possibly fit in a studio