http://emu.xaonline.com/host/mameplus/

This is my very favorite unofficial Mame32. It supports many special video modes like Eagle and so forth, and for those who want a full screen stretch on their games but do not like the filtered graphics look, it can do this as well. Just a few of the many options this build has. Basically Mame32 on steroids! I like the fact that it uses individual ID's for the joysticks, since I have two adaptoids and I can configure which joystick is P1 and P2 from right within the emulator. Good stuff. It also supports a few more games than the official build does.