After years of APS cameras, I finally took the plunge and invested in a beginner DSLR rig: Canon XSi (Digital Rebel 450) Canon EF-S 18-55mm f4-5.6 IS Canon EF-S 55-250mm f4-5.6 IS Got out of the store for about $1200 + tax. Not too bad, but there goes my "economic stimulus package". Just call me the model consumer. Your welcome, American economy! Problem is, there's about a million things I can do with this thing which I couldn't with the APSs I've owned, and every time I try to do web research, I either get topics way too advanced, or beginner stuff that's too simplistic. Can anyone recommend resources for those who understand how a basic DSLR camera works (i.e. I don't need to know that holding the button half-way down starts to auto-focus things) but starts to go down the road of advanced shooting while still taking the time to explain *why* and *how* certain things work (like the relationships between shutter speed, aperture, ISO and how to decide when to do what)? Thanks in advance!