i find 64bit windows a pain in the backside.
id rather lose half a gig than find half of my peripherals (including both my wifi adapters...) and half of my programs dont work
I feel your pain as i have an external soundcard and a wifi card in an old laptop that windows 7 won't work with. But you are overstating the problem.
This is NOT a problem when you are buying a new computer. All of the hardware in the laptop will be compatible with 64 bit windows 7, and it will (or should) include a wifi adaptor. There are also very few programs these days that don't have windows 7 64bit compatible versions.