that his icooler is probably the best, its gddr5, has a great cooler.
now, this may not apply to you, but most people using low profile gpu's are using them in mini itx cases(ultra small computer cases). ive seen some that are as small as a nintendo wii and still fit low profile cards. these usually are htpc(home theater pc) hooked up to an hdtv. with a budget gaming cpu, a 7750 will max out every current game at 1280x720, same output resolution as 360/ps3, and is nearly double the performance as 360/ps3.