[linux-audio-user] Anyone using a 64 bit distribution?

Hello, I upgraded my chip and motherboard to an AMD 64 based system. I've installed Fedora Core 3 x86_64 but it seems that I have to jump through a bunch of hoops to get audio apps to compile that I didn't have to go through on the FC3 32 bit distribution. I've decided to give up and try another release after the troubles I am facing compiling Rosegarden. Is anyone using a 64 bit distribution that they are happy with? If not, is there a particularly good standard distribution that people are using for DAW apps? I will be using mostly sequencing, softsynths, and mixdown apps such as Rosegarden, Swami, and QSynth. I need to stay with the 2.6 kernel for hardware support. Thanks for any recommendations, Alan