I've got a Radtec front mount on mine and to honest it is top. It was cheaper than all the others fits fine with only minor mods needed and the act's hardly ever go above 28 cannot understand why more people don't use them. Only problem I have is it could do with another fan to keep water temps down but there is loads of room for another just hav'nt got round to fittin one yet.
And it was in stock of the shelf no wait.