Johnny, that ASUS (your link was bad but found it on BB) is a 150Mbps N router. Minimum you should get is a 300Mbps. They have better performance and range.
Check these links, might help you decide :
http://www.bestcovery.com/best.....load-speed <-- I have the RT-N56U and it is very good, $99
Price might be an issue, but sometimes saving a few isn't worth it in the long run. With 802.1AC just arriving, getting the router (yes, these do approach $200 now) now will avoid needing to replace the lesser one you purchase later.
Although you run G speed now, upgrading to a USB N-speed device of 300Mbps or more, is fairly cheap. Most devices at $40 or less, even some at 450Mbps (but you need a router capable of that speed). Even the AC units have varying maximum speed.
Speaking of speed, a lot of that in terms of router selection, you have to take into account your ISP connection speed and router to computer distance and possibly causes of interference.
ISP first, if you have 10Mbps service, then G speed will do up to probably 40 to 50 feet away. G-speed routers are not DUAL band, but only 2.4Ghz, the same band many wireless phones use as do microwaves. N-Speed and AC-Speed routers (and connection devices) offer DUAL band, with a 5Ghz radio that is not bothered by that interference, however, range is generally less.
If you have higher ISP speed, then consider at least N-Speed, as with the G-Speed connection to your computer from the router could be less than what the ISP can deliver.
Planning for the future isn't a bad idea.