Yep, snatch it up!
I actually just got another video card in a 486dx4 for 10 bucks - but I'm curious about the whole computer swapping over. There's 3 full length ISA slots, a hard drive, and a couple compumotor cards in it. That was 10 bucks.
Unfortunately, the machine has the ancient big keyboard plug on it, so I'm unable to see what's installed as it won't boot up without it.