Welcome to SBB!
when I first started I wish I knew:
-to hold the shift key while resizing photos- so they stay proportional
-what size I wanted to scrap in so that I wouldn't have to redo a bunch of LO's
(be sure to think about what album you want to use, what printer you want to use- to determine what size you want to scrap)
-to zoom in to view>print size to make sure my drop shadows weren't too big
check out the tutorials above- in that quick site links box- ther are a bunch of photoshop ones there- even if they are written for PS7 or PSCS- they can still be used for PSCS2
if you get stuck- be sure to post a question in the photoshop forum
oh and when you go to a crop- be sure to announce that you are new to digiscrapping and everyone will jump in to help
