Something else I noticed on newegg was when doing a search of the firewall routers, the bottom option is "throughput" with all of these options:

10+ Mbps (1)
11.5 Mbps (2)
12.5 Mbps (2)
24 Mbps (1)
30+ Mbps (4)
40+ Mbps (1)
50 Mbps(1)
55.9 Mbps(1)
60 Mbps(4)
75 Mbps(1)
80 Mbps(1)
90 Mbps(26)
90+ Mbps(2)
91 Mbps(1)
100 Mbps(11)
125 Mbps(1)
150 Mbps(6)
190 Mbps(2)
200 Mbps(4)
240 Mbps(1)
300 Mbps(4)
300+ Mbps(13)
400 Mbps(1)
700 Mbps(1)
800 Mbps(1)
900 Mbps(1)
1.5 Gbps(1)
2.0 Gbps(1)

Etc etc.

Should I pay specific attention to these numbers especially if my cable co. says I have a 15MBps connection?

Sorry for the ignorance I just never really payed much attention to networking. I had cable installed with one computer. Got a 2nd and when to officemax or w/e and bought a router. Just never really put much thought into networking as a whole. And now I want to commit more of my resources towards an all out gaming/multimedia powerhouse and the first point I can find a chance of being choked, is the router.