I just found a List of things to look at when getting a HARD Drive and I need HELP with TWO of them?

When you look at the Data Tranfer Rate I know this is the Speed of the Data that it can Transfer.
And what I saw says it will be listed as RPM

RPM is not for Data Transfer Rate this is just how fast the Platter Spins RIGHT???
I saw it hee under BUYING TIPS FOR BUYING A HARD DRIVE.You want to look at the data transfer rate,  100/133/150MBps.  HARDDRIVE manufacturer should have the specs for you. RPM just tells you how fast the disk is spinning, although the faster the RPM the faster the data transfer rate normally.The bargain HDDs have 5400 RPM and data rate of 100mbps. For just general STORAGE they are good. Be also interested in the warranty. In some commercial applications they prefer the lower cost drives if they are more reliable.

Also , think about the type of drive. The SATA is a higher performance overall. The IDE drives are are starting to lose their place as the best value for your dollar.