It's been years since I last had anything to do with web servers. The last time, I found that Apache along with FastCGI (actually mod_fcgid) and suEXEC gave me a seemingly perfect way to handle PHP; each script would run with the privileges of its owner thanks to suEXEC, and FastCGI would make it so that PHP didn't need to spawn every time a request came in. Absolutely marvellous!
Now I'm setting up a little VPS just for fun. Due to memory constraints (and the desire to learn something new), Apache has been replaced by lighttpd. Moreover, the last time around I swore never to touch PHP again. So this time, I'll use Python (and possibly Haskell) for my dynamic needs. I've played around a bit with lighttpd+FastCGI+Python, but I can't see how I should tie this in with something equivalent to suEXEC.
So, to the question: Could someone give me some pointers as to how I would go about setting up lighttpd with FastCGI in such a way that every Python script requested is run (through FastCGI) with the privileges of the user owning said script?