Hey I got hold of a V. old pc for free

and it has really tempted me to experiment on a unix based OS, Something I really wanted to do for a while.
Can you tell me whether Unix / Linux will run on these specs and what Version (?) to go for? And maybe a URL for a dload?
Redhat seems good but I have never used linux B4. I've some programing (c++ &
vb) knowledge so i dont expect any difficulties...
Whos knows! if it goes well I will install it on my main PC.
Thanks a lot!
Specs:
486DX-60mhz
16mb RAM
4gb HD (urgh will have to borrow this HD from my CD copier PC)
Old Diamond Stealth G Card
A floppy drive

wow!