well I was searching for a way to slow down a win 95 game running at 5x what it should and found this guide. Have fun!
http://www.oldskool.org/guides/oldonnew/intro

I would recommend starting at the first page
http://www.oldskool.org/guides/oldonnew

Or you could do what I do... Keep one machine around from every era.
I didn't see the value in keeping my older computers at the time. But now, I've gone back and rebuilt a bunch of them using spare parts and old parts from the local computer discount store. I've got everything from a 286/10 w/ a SB1.0 to my P4 2.8 with all the latest crap.

For some things, MoSlo and DOSBox provide too choppy a slow-down, so I just load up on one of the old clunkers and let the good times roll!

Its a very nice guide, well written.

I'm particularly fond of OBiN's idea...I have an old laptop that I sometimes use to run games. But for the most part I have been able to run anything that I want on XP, (with the very sad exception of Sanitarium), :cry:, it runs, but the graphics are messed up.

luckily I've got 3 x 5.25" drives :D
edit: They're working just fine with Windows XP. My problem is that most of the newer machines/motherboards doesn't have any support for 2 floppy channels :cry: so I have to switch between 3.5" and 5.25"