Well, my internet has been acting oddly sluggish for a while now. Sites like yahoo don't load at all. It will lag me and disconnect me from ventrilo if I open a web browser. And it sometimes freezes downloads right in the middle, no indication that it froze, only that the bar stops moving accross eventhough it still claims its loading at 500 kps. I run yahoo anti spy daily(from the yahoo toolbar which thank god lets me answer my mail), along with spybot S&D. System Mechanic runs a daily clean up in the morning, and I've scaned my computer for viruses with Avast seeing as my norton has gone missing at home. I've also reset my router twice and nothing seems to work. I've been doing anything I can think of and nothing works. Any ideas?

You may want to post a hijack log here http://www.techhelpforum.com/forumdisplay.php?f=32 just in case there is something that your AV isn't picking up.