I hope I'm not doing a mistake by posting this here, I just thought you guys might be interested...
I have found a great freeware for ADSL users. It's called ADSL Autoconnect. It's a Re-Dialer, that keeps your PC online 24/7.
No more IP disconnecting you every 24 hours, you can go on holydays or away for the week-end, and your PC will stay connected as long as you want.
This soft can auto-load with Windows or be set manually ot according to a schedule you choose.
BUT... It's in FRENCH. I've just sent an email to the programmer, to ask if an english version is on tracks. Until it's released, french-speaking guys really should go check
As for the others, I can try to help you with the settings if you want.....