my internet is freaking out on me

[Craig]

my internet just started randomly not working the other day, every now and again it'd just like cut out for a min or 2 and then come back after a while, or if i unplugged my router and modem for a second, which is very annoying cos its still doing it.

thats just like being on msn and browsing the net when it does that, but if i'm playing world of warcraft it does it like every minute which is 10x worse. so i get the feeling that if my comp is using more power by running the game it's maybe making it happen quicker?

edit: i believe i just confirmed my theory as i turned on limewire to download some stuff and 5 seconds later my internet was off

any ideas?