What Tranny Coolers have you installed, where?

Hey guys. I am sure this questions has been asked, but I was not able to find this EXACT question in the search. The very first mod I plan on doing to my car is the tranny cooler. I was thinking that getting an after market one and mounting it in the car in series with the stock one is the way to go from what I have read so far. What are the exact coolers you guys are using and where are you putting them? Pictures would be very helpful too if you can spare posting them. Thanks all,

- Jason
Blue '94 SVX-L

P.S. - Also where did you buy it, who installed it and how much did it cost you? Thank again.