64 bit or 32 bit

Now I've decided to make the jump to windows 7, But after all the reading and searching i just can't make up my mind on what the tittle says. This is what I'm running Pentium(R) Dual-Core CPU E5300 @ 2.60GHz with 4 GB of ram, My mother board will not let me run any more due to having only two slots limited to 2 GB each, Now i use my computer for flash gaming and heavy surfing, I would like to get into more stuff into the future. Now what i have read is the 64 bit can be a bit more setting up with drivers and stuff which i don't mind playing around to get it right but will it be a constant problem ???

Not unless you use a bunch of ancient software or peripherals that were discontinued sometime during the Clinton administration.

Let me understand you better. Do you have a 64 bit system, and are you asking whether or not you should install the 32 bit version of windows7 or the 64 bit?
If so, install the 64 bit because the operating system will make better use of your CPU. Windows is mostly plug and play I don't think you will have a problem with drivers unless you are installing a whole bunch of hardware, in which case you may come across a rare incidence were the driver you need does not come with Windows. I don't think you should worry.

i'm running 32 bit looking at going to 64 bit thanks for your support guys i will be going for the 64 and soon i'll be part of the windows 7 crew And giving vista to the bin