30ft is nothing lol. I have a 50ft cable running over my living room from my modem to my router.
You don't need specifically a PCI-E wireless card, as a USB dongle will do the same thing but I linked both as an option and the N10 is just the lower version of the N15 I already linked. Either will do, but if you want to game wireless isn't the best choice.
well when you have other family that use wireless and a person who stays on netflix sucking up the bandwith all damn weekend...
Yeah online gaming would suck for anyone, that and depending the wireless adapter and strength connectivity throughout your home.
Many things factor into wireless play. :/
Pskater that belkin wireless usb nic would do good on gaming.
If you game at night or early in the morning and don't stay on it you'll get some good fights in pvp with wireless.
Amazon.com: Buying Choices: Belkin F7D2102 N300 Micro Wireless N USB Adapter
You might get this on wednesday or sooner depending on how close the item is and how quickly they ship.
If you can't get wait go to bestbuy and ask what best options are for wirless nics under 35.00 bucks.