The Pros and Cons of 64-bit Win7

The Pros and Cons of 64bit:
Pros - You can use more than 4GB of memory, so it is great for things like Photoshop, video editing and games (IF you have the 64bit version)

Cons
- 32bit hardware (this means, for the most part here, peripherals - like printers, scanners, things you plug into your computer) drivers won't work in 64bit, and some hardware doesn't and won't have 64bit drivers. - So, some most hardware won't work in 64bit.
- not all programs come in 64bit
- not all plug-ins for Photoshop come in 64bit
- some 32bit programs will not run in 64bit (most will run in 64bit, usually the ones you need to run won't)
- some programs meant to be 64bit don't work in 64bit
- 16bit (very old) programs won't run in 64bit
- few games are written yet to take advantage of 64bit
- not all video editing (or that old video editing program you have) will be written for 64bit (and these 32bit video editing programs are some of the ones that most likely won't work in a 64bit operating system.

Who should get a 64bit operating system?
Someone who is going to be running a or some specific made-for-64bit programs, who also is using new peripherals with 64bit drivers, and won't need to use other software or hardware that is or could be incompatible with the 64bit system.

Who should not get a 64bit operating system?
Everyone else.

Eventually, when most things work with a 64bit system, then it will make sense to get it. Otherwise, I would stick to the 32bit system.