Have a chance to buy an almost new Canon SX1 for $399. Camera is 3 year old technology, but tests well with the few samples I got to take with it. 10 mpix, 20x optical zoom, 1080 HD video with two mikes, sized between a point and shoot and a small DSLR, takes 4 AA batteries (both a plus and a minus). Currently have a Canon 450 DSLR and a Pany ZS6. Don't need it, but you know how it is sometimes. Opinions and/or experience of/with this camera?