Yes yes, I know it isn't much to most of us but there are still people who use dial-up or mobile Internet access. Besides, there is no real reason to have a whopping Flash animation as either your avatar or sig. Scouring through member profiles I see there are a fair number of these monsters.
Thus, I've decreased the sig size limitation to 300kb from the ridiculous 1mb size. Avatars are still the same at 130kb with dimensions of 125x125.
You are also still allowed Flash and such. Oh, and text is also your friend
kthnx