Um, try about 15 Firefox tabs, 4-6 Visio instances, multiple Excel spreadsheets, multiple Word documents, AOL, Skype, multiple Adobe instances, various .jpg files, MS Outlook, etc. Oh, and I also have to use PowerPoint now and then. Powerpoint and Adobe don't work and play well together in sharing memory (or releasing it properly when closed for that matter...)
Right now between AOL, Firefox, and IE, it's over 2GB of memory. My page file is about 2GB or a tad more.
Bryan