most upto date wireless routers support both g and b so you should be ok .what router are you thinking of getting as this will give us more info.sorry i missed the link ignore the bit about info.
yep it supports both G and B so you should be good to go
1 Thermaltake Tsunami Dream case Jeantech 400w psu 220gig sata H/Drives Abit AV8 Mobo Socket 939 AMD 4200+ x 2 @ 2.6 ghz 2048 ram. 256mb Nvidia geforce 6200.
2 Abit AV8 350w psu AMD64 <A firstname.lastname@example.orgGhz 512 ram geforce tornado 128mb.
3 Advent 7038 laptop AMD 2500+ 512ram ATI 320 graphics. wireless.