Well i have an 030 accelerator w/64mb would this be enough to run a decent desktop with a reasonable resolution?
I ran a 1600x1200 with an 8MiB BVision board on a system with 64MiB for a while before maxing out the accelerator card to 256MiB, so I can't see why not. System ram is generally only used for non-displayable image data, otherwise your video cards memory will be used.
The only mediator based system I have right now has only 32MiB of memory and runs a 1280x1024 resolution 3.9 install just fine*
*well, it isn't running right now due to a disk issue, but when it does, it runs fine.