you have the okay priced ACA030 at 56mhz and 64mb. but then again maybe that will be something temporarily and you want to upgrade to a blizzard 1260. the best option before going ppc... a blizzard 1260 with fpu at 66mhz with the scsi kit and 128mb of ram (64+64 option) is just awsome but it may take some time to hunt down and can be a bit expensiv...
though choice...