I use Mozilla (actually forced at the moment, since a rogue uninstallation script deleted half my program files directory.. including IE) and it's great. The tabbed support is really nice when you want to look at 10 sites from slashdot but don't want to have to keep on swapping back to the original window.
The only problem I have is that i can't download attachments from hotmail.. but I can forward them to my other email and download them from there.
I wouldn't use Netscape.. that's AOL's package, and it comes bundled with AOL messager, winamp and lots of other crap. The only thing going for it is the spell checker I think
. Go get the mozilla milestones from mozilla.org instead
- Nick