Oxygen Sensor best buy, where?

I'm going to replace the O2 sensor in my 87 and my wife's 90. Where is the cheapest place to buy one that is decent quality? Figured i'd ask instead of searching Google for hours trying to find the best price, hoping somebody here already knows of a good place.

And what are the possibilities of getting a seperate thread/sub forum for things like this?

Best Place to buy... etc. That way people can post good deals and where to buy stuff for a good price.

PM "Clean-RC"

Scott is an OEM Crown Parts Dealer. Im sure he can help you out.

My favorite Cheap0 supplier Rock Auto has them for $40 to $50. Does anyone have a XJ forum discount number for Rock for the 5% off like the Mark VIII forum has?

i buy the o2 sensor for my 89 locally for around $50

X2 on Rock Auto. Consistently lower prices for quality parts - acdelco, moog, etc..

Couple of discount codes and a link to a discount code site here:
http://www.naxja.org/forum/showthread.php?t=975714&highlight=rock+auto

One thing to pay attention to is they'll charge a separate shipping fee if you buy multiple items that come from multiple warehouses. If you can get all the items to come from one warehouse then you pay one shipping fee.