Functional PowerBooks that are in acceptable condition have soared in price lately, and I'm just not willing to pay what people on eBay are charging for them. I'm mainly looking at building a 1.5GHz 15" machine because I found a board for one for $20. Are there any parts (palmrest assembly, display, WiFi, etc) that I should be aware of that won't be compatible with a 1.5GHz model? Are there any other speeds that would be fairly affordable that I should look into? Basically, what should I know going into this? My other option is to convert my 867MHz PowerBook G4 12" to a hacky Mac mini, but that sounds a lot tougher, especially since the dumb logic board is stuck in there because the standoffs are broken.