Need new PSU, need suggestions for small atx board

[Octoman]

I have an old IBM aptiva, with a K6-2 on it and the power supply has gone bad. It was a 150w and I need to replace it. My question is however, can I fit this motherboard into a regular size ATX case? The board is one of those small ones with a whole bunch of stuff built in, i.e. sound and video. Any help would be appreciated. The problem i am really having is finding a PSU smal enough to fit into the case. the dims are 5 3/4W x 3 3/8H x 3 7/8D
Any suggestions?

[Penguin4x4]

Will a 1U PS fit?

[Da Whip]

Here is an Aptiva owners site, maybe they can help.
http://members.aol.com/don5408/aptiva.html

[Bender]

An atx case should have mounts for a mATX board. You can use a standard atx case or just replace your PSU.