Thanks for the info, I really like the topos, they are half the reason Im getting a gps, in most cases I wont need one but the ability to turn on back track mode and throw it in your pack and not have to worry about where you end up and how to get back is so nice I can't ignore it.
Im definatly going with a model that has removeable SD cards so I can switch my topos on the fly so that pretty much eliminated everyone but garmin
And Im being tempted by the 3 axis compass but I think thats just overkill.