If anybody's looking for a geeky PPC to play around with Linux, this should fit the bill:
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That looks an awful lot like the 43p. The 43p used the same enclosure that the IBM PC 750 utilized. A good 43p-140 can be had for around $100 on eBay http://cgi.ebay.com/IBM-RS6000-43p-140-233mhz-256mb-9GB-AIX-Workstation_W0QQitemZ9729508576QQcategoryZ11222QQssPageNameZWDVWQQrdZ1QQcmdZViewItem . I used to work with these in my days at IBM. Though, the real fun was the F50. Here's an example on ebay. Good times http://cgi.ebay.com/IBM-7025-F50-Dual-332MHz-Server-RS-6000-RS6000-RISC_W0QQitemZ9727228308QQcategoryZ11215QQssPageNameZWDVWQQrdZ1QQcmdZViewItem .
I suppose it was a truely geeky trade when I traded a 43p-100 for a SGI Indigo. Now I almost wish I had picked up a 6015 when I originally got the 7248 43p... There were also some other cool PPC workstations there at the time. ;(