If you're going through the trouble of replacing the radiator, might as well get a 2 or 3 row aluminum one. LMR sells a few different brands including their own SVE one (no experience with that). But there are Mishimoto, Griffin, SVE, etc. to choose from. They all range in the $200-400 range if i recall, but don't quote me on that.
Not sure about the 2 rows, but the 3 row radiators will require some 'massaging' to your radiator hold downs. You can use the stock ones but you'll probably have to bend them outward a little bit to get them to fit over the wider radiator.