Just a light interjection here, and not trying to tell grammy how to suck eggs, but have you guys tried working with MapTools itself for over-the-net sessions? I confess I've never actually tried it, only used it for the mapping function (I tend to take a screenshot of the state of play at the start of battle and use MS Paint to write up the axes on my grids, using cut and paste to move people's pieces around and generate new round-by-round pictures). Of course, the medium here is a lot different, but the system looks pretty powerful just on my cursory glance over it. Also, for nice(r) maps, I recommend [link=http://www.dundjinni.com/]Dundjinni[/link], which, although not free through conventional sources, does have a decent library of clip art and textures (including a built-in gridmaker) and the maps can be imported to MapTools. Like RPTools (and like most of the DM management software I've tried over the years) it's not immediately user-friendly, but with a bit of fiddling around (and assuming you're willing to put up with suspiciously-regular-looking backgrounds) you can pull off some passable maps.