In all likelyhood, port forwarding isn't going to help you.
There's a post somewhere here (quite recent, I recall) that includes a nice simple script that'll set optimal naggle settings. That will have a HUGE impact on your lag.
Other than that, disable utorrent, stop downloading pr0n, and you'll be doing just about the best you can, short of getting a faster connection. There's a post about setting MTU, but I don't think anything you change will have a significant impact on lag.
There's a post somewhere here (quite recent, I recall) that includes a nice simple script that'll set optimal naggle settings. That will have a HUGE impact on your lag.
Other than that, disable utorrent, stop downloading pr0n, and you'll be doing just about the best you can, short of getting a faster connection. There's a post about setting MTU, but I don't think anything you change will have a significant impact on lag.