Digital BW, The Print

Suggestions needed. I need to take a step up the ladder of managing my 
digital files, having just found myself out of hard drive 
space. Thinking that now would be a good time to lay down a foundation 
for the next few years, I'll be migrating to a new C: drive 
and would like to hear opinions on how to manage it. By this I mean 
partitioning, and how many, where to put Photoshop (Elements), location 
of scratch disks (yes, Elements has these), location of My Photos, 
location of Windows' swap file, use of a 2nd physical drive, and 
supplementary USB drives. And how do you keep all this under control? I 
realize this may be a big subject, but your assistance will be much 
appreciated and when it's all over will likely avoid a lot of screwing 
around at a later date. Thanks.

-Michael K