Toyota Repair: Estimated cost to replace rear main oil seal, rear main oil seal, seal oil

Question
I have a rear main seal oil leak on my 1995 Camry with automatic trans. I understand it is mostly all labor.  Approximately what should I expect the cost to be?  Should I consider this a possible do it yourself project?  

Answer
I don't normally answer labor related questions because of the deviation between locations so I can only give you what the labor rate would be in southern california which is probably higher than anywhere else, the labor time is normally 8 hours, this is multiplied be the hourly labor charge of the shop, it is currently at $85 an hour here, do the math according to the shop you are dealing with, the seal is about $20.