I'm really trying to dissuade myself from buying the new Olympus e-420 with the 25mm f/2.8 pancake kit lens, but without much success. I have to admit that I'm feeling that same sense of fascination in its form factor that I originally felt for the MacBook Air. However, I quickly dismissed the MBA for its shortcomings and bought a MBP instead. Since my husband has a Pentax K100D, I suppose the wise thing to do would be to get another Pentax camera so we could share lenses. I also have made an investment in SD cards that I could put to use in a Pentax camera. But the e-420 is so much smaller and lighter than any Pentax!! Especially with the pancake lens--and a fast, wide prime lens is exactly what I will use most. As one reviewer quipped, "if the Nikon D60 is a sedan, the Canon XSi an SUV, and the Pentax K200D a school bus, the E-420's like a Mini Cooper." But do I really want a four-thirds format sensor (which supposedly is inferior to all other DSLR sensors)? Do I really want a camera without optical image stabilization? Will I hate using a camera with such a small grip? In short, does the e-420, like the MBA, compromise too much in the quest for diminution?