Yea, those UWSCSI drives are cheap. I picked up a 16GB 15k drive that claimed to be new for $10 off e-bay. I get 30MB/s now on my CSMK3.
I also recommend SFS. You should have AmigaOS 3.9 also. Keep your boot partition under 4GB. 1GB or less is most practical. All the other partitioning is just preference.
