Partitioning in Windows 7
I had the same dilemma and here's what I do now.
All data is on an internal secondary spinning disk drive. My folder structure is.
Account [docs, media ... Etc]
Software (drivers, programs, etc)
Sort (all browser dl's / other dl mgr's point here)
Then in libraries I just have the appropriate library include there too (or only) and create additional libraries as needed... You can point to the data however you wish.
My main drive is 256gb SSD and contains only windows and program installs. This also helps me keep track of windows' stability and prolonged my regular reinstall intervals.
I have other devices that that are partitioned as they have multiple OS' so it's still useful to know and can be fun , context permitting.
Humans are the only creatures that won't live up to the their potential. Give everything your all. When you die, die on E.
So I ask you, what do you intend to do now?