Hey ... You can get any wireless router as long as it supports B for your adapter. Wireless B is fine as long as you dont have a need for large file transfers. I still use wireless B since the connection is 11mbps and the internet connecton is around 4.5mbps. If the bottleneck opens up to the internet for me past 11mbps, then I will invest in replacing my wireless B router with a newer 54+mbps wifi router.
If you look, you can find like a wireless Linksys Router Bundled with a Wireless Card... They usually offer promos this way. Otherwise I would buy a Linksys wireless router and get a Linksys card to make setup easy...
Be sure to change the default password to the wireless router to avoid hackers pocking into your wireless router. Also use a security protocol like WEP or WPA, MAC filtering, and limit the number of concurrent leases through the DHCP of the router to keep out intruders.
Dave