Poopoo: Here's a good link that talks about changing your oil. Re the filter wrench/tool, you can pick up a "cup" style tool that works perfectly at Napa. Of course, you'll get lots of opinions about oil viscosity...for my $, unless you're going to drive in winter/cold, I'd go w/ the 15W50
renntech oil change thread
Also, Sunset has a sale on oil filters right now.
sunset wholesale parts