Why switch from Dreamweaver 4?

Ok guys I need some help

At my work I have a PC and an Apple. On the Apple we use Dreamweaver MX 2004 which is great. Unfortunately on the PC we use Dreamweaver 4.

I’ve got to come up with about a paragraph explaining why we need MX 2004 on the PC as well and why it’s necessary for us to upgrade. I’ve already typed one up about why we need Firefox on the PC’s and not Netscape Navigator 7.0

I can’t think past Dreamweaver 4 sucks and there are some small compatability issues regarding templates. Anyone know of anymore reasons for an upgrade?