If its all you can afford than the F6 cooler will do fine, its better than a stock cooler, but not better than a 'wog' cooler. The plaz and PW gear are SH*T loads better than all three. I only want around 280-300rwkw's, so I got a 'wog' cooler they go pretty cheap around $350 or so. I also got an UBP, cause the stock one is a major restriction.. They also do the job fairly well at those power levels... If you want big rwkw's in the future that get all the good sh*t now, if not than save up.... Look at the big picture, no point buying 'alright' stuff now and then selling it later, possibly loosing money just to buy the one you should have... If I was you I would be looking at Rapid Systems.... IMO best bang for your buck and can handle big rwkw's for later on My 2c.... Mike