Right as we speak a Multiplayer mod for GTA San Andreas for the PC version is in the works. About a week ago I downloaded a video of their version of Vice City on SA-MP.com and it looked great! They aim to have this mod done in about 2-3 months saying that players will have alot to keep them busy in the mean time with the single player San Andreas.
"I think SA-MP will progress just fine and on schedule. I estimate that it will be 2-3 months until the first release, but you can probably expect some screenshots/video sooner. The only thing I've established is that the game is fine for memory type mods"
When asked about all the additional features like eating and going to the gym, they said if they can't make that availible for players they will have to take it out.
So stay tuned for more on this the coming weeks. Also a little update on San Andreas PC : All images that you take with the in-game camera is saved in your "My Documents/GTA San Andreas User Files/Gallery" folder as jpeg images.