Heading to WDW in 2 weeks. I just recently bought Lightroom 3. I have never used Lightroom before. I have been a JPEG shooter on a Canon 40D. Questions: 1. If you shoot RAW+JPEG, how many total GB's will your memory cards at WDW add up to? I currently have a 2GB which I am estimating will hold about 100 shots when shooting RAW+JPEG. 2. For a novice RAW shooter and novice Lightroom user, is it unnecessary to really shoot RAW+JPEG? My main editing prior to Lightroom was very basic stuff using Picasa. 3. What resource did you use (or, more importantly, would you recommend) for learning Lightroom? 4. I would appreciate if someone could give me a very basic rundown of your workflow process using Lightroom and RAW files. Any advice is appreciated. You can surely gather my level of (in)experience when it comes to editing, so if there is advice beyond what I thought of asking, I would be pleased to hear any of it. Thanks!