Check where the oil filter housing meets the block. This is a very common area for oil leaking on these cars, and is a very inexpensive gasket to replace.
You will need to detach the oil cooler lines from the housing. I used a line wrench and homemade (1 1/16) flare nut wrench from a box end wrench.
Where it mounts, you will need a good quality allen wrench to remove the four bolts.
That is about it, along with some patience. Not a bad job, just be sure the gasket is lined up correctly. If you are very new to DIY, here is a good site with some good kits which include instructions:
www.**************.com