5 RAW photos stitched together in Photoshop for a whopping 235 MB file. Shot this freehand since I didn't have a tripod with me, had to resort to shooting this auto since my hands were so frozen that I couldn't adjust settings.
You're in luck then. I held out for the longest time because the photo-stitching tool in Photoshop CS4 was notoriously unreliable and would crash about 60% of the time for no reason at all (this was normal for CS4, wasn't just my computer.) CS5, however, is a sexy sexy beast of a program that doesn't do this, so I've taken to looking for more panorama opportunities.