Sorry, it looks like I was off by $100... it cost me $360. I got these ones:
http://www.partsamerica.com/ProductDetail.aspx?MfrCode=BOS&MfrPartNumber=15738&PartType=291&PTSet=A
They fixed the problem that the cheap sensors caused (all of the codes), and they made my car drive a bit nicer (smoother off the line and such), as well as increased my MPG by aboot 2. They did not fix my original CEL that I'm still trying to track down, unfortunately.
They needed replaced on my car anyway, so I'm not too let down that it didn't cure my original problem. They were definately the same ones that shipped with the car 10 years and 100k miles ago, so it was time for an overhaul of em.
I would steer clear of the generics until someone finds out what's going on with them with the 2.5L engines. I don't know if BinaryC and I just had bad luck, or if it's something incompatible with the DME...
Was anyone able to use these with a 2.5L engine successfully?