For those of you looking to purchase a Single 120mm here are some prices of the RX and other comparable radiators. Prices were taken on 01/10/2009.
As you can see, the XSPC RX120 is $30 less than the TFC 120 and performs better with low speed fans and nearly identical with high speed fans. This is a tremendous price per performance product.
As I stated in the beginning of this review and test report, the only experience I had with XSPC products was the DCC Res Top, but after the testing of this product I am eager to get my hands on other XSPC products. Traditionally, XSPC prices their products at very competitive prices and they never skimp on performance at the price point. Paul from XSPC is a great guy to deal with and very open to feedback. I have to assume that Paul has been listening to Liquid Cooling community after testing this radiator.
Overall, the XSPC RX120 is an amazing radiator. Everything about the radiator is exactly what the Liquid Cooling community is looking for. In my opinion, we have a new price to performance king as well as king of low to medium speed fans. I will definitely be recommending the XSPC RX line of radiators to others in the forums I frequent.