Got mine at sears..
amazing this thread is still going.. may become the worlds longest oil change DIY post..
As for the splash shield.. you could leave it on.. I took mine off.. the four screws were not a major time issue. Trimming the shield does sound like a good idea if you drive allot and need to service it frequently.
Thanks again for all the positive comments! With the training posted here you too could work at jiffy lube!