Since you are going to use a laptop, most already have built-in wireless capabilities -- so double check what it is capable before you go and purchase something that is more then your PC can support. If it doesn't have the option built-in, then you are free to choose what the protocol you want -- but that will mean you have to be careful about the interface card / USB connector that you use -- if you are not real PC savy -- take you laptop to a PC store -- and ask for a recommendation.

Good luck -- BTW -- I am using built-in wireless adapters and a Linksys wireless router. If you have a printer -- check to see if the router accepts a printer port -- or if your printer supports wireless -- just more to get to work together. Most wireless routers will support most lesser speed protocols -- but again, don't buy more then your faster interface.