crysis rulez!

even on my old x2-3800 with a nv7900gs i can play it smooth on medium-1024. i will definitly buy this game...but more for the sandbox2 editor then the actual game.
i played around with the editor the last days and like it alot.
i have a small question slightly related to sandbox2:
do you know a place on the interwebs where i can find highresolution highdata from europe...or even better southern germany (berchtesgaden)? the only thing i found was srtm90 data but thats not so super cool in sandbox.
to get the needed .raw file for terrain-creation i used "3dem". its a tool that does the job but lacks the possibility to select a specific area e.g. like 4096x4096 meters. is there a better tool for that purpose?