I know I'm going to get slammed for this post by the INTEL masses again (and there won't be any PowerPC people here to defend me because they've stopped reading about Snow Leopard mostly), but so be it. I think Apple has abandoned not only PowerPC, but left people who paid $129 for Leopard with an unfinished product that is now basically FIXED or STILL GETTING FIXED in Snow Leopard. That's how I feel.
Where is my 10.5.9?
Ya know, the version of Leopard that stops Safari from crashing 8-12 times a week, and gives PowerPC users some of the bug fixes in 10.6 and 10.6.1.
Ya know, the version of Leopard for those people who paid the SAME $129 for Leopard and don't get any of the Snow Leopard bug fixes (except for security fixes)!
Ya know, the version of Leopard that fixes some of the interface anomalies.
I won't even get into the fact that some of the new features in SL could be PowerPC compatible because that's a whole other argument.
Don't get me wrong, I applaud Apple for continuing security releases for even Tiger at this time, although I'm sure that'll stop soon though.
But, some features even in iTunes 9 work in Windows XP & Intel Macs yet won't work on faster more powerful PowerPC Macs sold just 3 years ago. I can understand Apple discontinuing G3 support (that quietly kind of went unnoticed), but iMac G5s and PowerMac G5s were quite expensive machines to abandon in my opinion on some of those features and I'm not sure I can see a technical reason why other than Apple just saying FU customer.
Makes no sense w/ Snow Leopard or iTunes... Why would a less powerful NON-APPLE machine be supported over a more powerful $3000 APPLE machine that's only 3 years old?
Not to mention Quicktime X... If that gets released for Windows XP & Vista and not for Apple's own $3000 more powerful Powermac G5s sold 3 years ago, I think I'll go postal.
I hate to say it, but if that happens, I'll be taking a serious look at Windows 7.
And that would be the first time I considered purchasing a PC since 1987!
This is a very poor way to treat your loyal hardware customers Apple IMHO.
PS: Let the attacks begin...
I run sweet and clean on a 2008 Unibody MBP 15, 5,1 with 4 Gig Mem and 10.6. Zero Issues. Clean in 32 bit mode and 64 bit mode. Have adopted 64 bit mode for day to day use.
It is possible that your problems are comming from Kernel Extensions and or in the case of Safari from Safari plugins.
You may want to do a backup, then do a clean install and migrate your data only. Then install your tools and staying away from plugins and things like that.
Good luck