technically the answer is yes, you'll get great internet from the wireless router to your PC.
My advice is if you can stick with wires do so, but if that is impossible (like in my house) then you have to go with wireless. the Buffalo WBR-G54 is a great wireless router, and it's what i use.
the drawbacks are
1. increased cost, wireless cards and routers cost more.
2. wireless security, be aware of the latest security protocols on wifi such as WPA, and implement them, or use a high bit encryption WEP mode on the router.