I recently did an install of retail 10.5.4 onto my laptop, a Dell XPS M1330. I've gotten the graphics to work with the sleep trick, the sound to work using Taruga's AppleHDA patcher, and basically everything else except for the trackpad. I tried several PS/2 kexts i found on various forums, but they cause my keyboard to spit out random gibberish, not really a good solution to my problem
So if any of you have experience with this sort of hardware and would give me your input, i'd appreciate it. Thanks in advance.