This is not a question. This is info for Linksys router users!
Internet is full of questions about routers that slow down internet so I decided to tell you this: about 90% there is a problem with your router not laptop or desktop wifi card! In last two weeks I have tried6 different routers (BelkinX2, Linksys, Edimax, Dell and D-LINK). 4 of them were facory errored! I have 10 Mbit/sec broadband internet.
Both Belkin was almost dead (2 month old and just bought) - speed throu router (no difference between wired and wifi) ~ 0.5 Mbit/sec
Linksys worked better ~ 3-4 mbit/sec
Edimax almost perfect!!!
Dell (best of faulty) ~ 6 Mbit/sec
D-LINK works perfect! No special configuration. Plug and play!