I'm kinda in the same boat. I think my original rad. (ones with plastic) may be leaking (atf may be leaking into the rad. via the cooler lines *shudders*). I'm not really in a position to online shop and get a good deal, as time is of the essence. I'm just gonna go to my indie and have them put in a new all-metal rad., plus coolant flush and atf flush (for peace of mind) for around $300+. the volvo parts yard that I sometimes go to have used rad. for $75, and they can install it for a total of around $100 (incl. rad.). I'm not sure if they have the all-metal ones because when I asked about it, the guy said why do I want an all-metal one. in a sense, it was like he was saying what's wrong with the plastic ones they have. that sort of indicated to me that's what will be installed. the price is attractive, but I I think I'll invest in a new METAL rad.

I wish I had the know how to do this kind of work, otherwise I would do it and save some clams.