Your laptop can handle the 64 bit. However a clean install will be required, you can't do an inplace upgrade from a 32 bit to a 64 bit OS.
I sugest you use Windows upgrade adviser first: http://forums.cnet.com/5224-19411_102-0.html?forumID=151&threadID=392359&messageID=3296226&tag=forums06;posts
I am just wondering if my Laptop can actually handle the 64 bit version of windows 7. I currently have a 32 bit windows vista version.
Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz 2.27GHz
GeForce 9600M GT
32-bit operating system
I also know if I can I will have to do a clean install.