If I just use it for browsing the internet and some online poker, do i really need to buy one of those "higher end models" This last one served me well for about 4 years.
Nope, you will not notice any different with a high end router. You're gonna want something reliable at a reasonable cost. I have gone through a lot of cheap routers (trendnet and dlink) and was pretty much always disappointed in the end with performance/reliability. I did a fair amount of research and narrowed it down between an Asus and a Buffalo router. I chose the Asus because it was about $20 cheaper and I didn't need the extended range of the Buffalo. If you don't mind following a few steps, I still highly recommend the Asus and loading it with Tomato ND. It's been rock solid for me, and I've read nothing but good things about it.