I just successfully triple booted my HP Pavillion (dv6149us). 
At 1st it was just Vista, then i installed iDeneb 10.5.5 (Hackintosh) and just yesterday, I installed Ubuntu 8.10 (yataaa!!!)… after 4 times of partition and 3 times installation and resintallation of ubuntu… it finally worked… but my dafault bootloader now is GRUB… i kinda liked Darwin (from OSX86) better… but hey, what works well is good enough, than “not” working at all…
Anyway, just this morning, I enabled Compiz (Beryl)… on my Linux boot… and i was surprised how easily I installed it… unlike from the previous versions… and unlike my MacOSX86… most of the drivers in my laptop, worked perfect (esp the most important ones)…
Maybe sometime, I’ll try and write a tutorial on how i did the installation(s).
I do hope you have bought a license for Mac OS X 10.5. Hacking it to work on unintended hardware is relatively benign, but pirating it in order to do so is something else altogether. If you bought a copy and you’re just hacking something you own then that’s fine, but if you didn’t, you’re just stealing from Apple to the tune of $129.
Hacking and piracy are not the same thing. Don’t make them the same thing.
@TMS… no worries, i just use the hackintosh because i was planning on buying an original one… and i just did, last saturday (2008-24-01)… i guess you can say i was preparing for one… and want to verify how am i going to use it for web (php) development. cheers