To start off, I don't know much about computers. I just bought an iBuyPower dektop computer bundle from Walmart.com. I bought a D-Link DIR-655 Xtreme N Wireless-N Gigabit Broadband Router thinking I could use that for internet access. I already have a wired router in my house (not in my room). Is it possible to have two routers with only one ISP? If not, I believe I'll need to buy a wireless USB adapter. I was looking at Netgear N900 Wireless Dual Band USB Adapter and wondering if that would be a good choice.