First of all mir_ror the controllers are
1)scsi: too expencive dont even think about it
2)ide: i dont think u are gonna find a ide controller/hd now they are too old (imagine like searching for a 80386!)
3)eide: the most popular but is aging now.
4)uide:the newest,probably the one you will find in the market.
As for a good site in the net for these matters i suggest
www.tomshardware.com and its storage guide in
http://www5.tomshardware.com/storage...728/index.html