i dont have QE/CI on my Lenovo Ieadpad Y450 laptop but i'm still able to play 720p mkv's just fine (I have Core 2 Duo CPU). Can't do random screensavers, frontrow or vlc. I use Mplayer and sometimes Quicktime to watch videos. Youtube flash videos play just fine (HD has a bit studder and full screen is a tad bit slow). I hear you can run older versions of Photoshop (Not sure the version) and iWork etc without QE/CI. There are also workaround/alternative apps for Apple apps that don't work because of lack of QE/CI.
As for the dual boot i'm doing Snow Leopard and Windows 7 just fine using Chameleon V2 RC4. I didn't have to configure anything just installed bootloader during setup of SL and boom it worked.
Thanks for the info! I have Photoshop CS5 (just ugraded) and Photoshop, InDesign and Dreamweaver CS4, GameSalad Creator, and iLife and iWork '09. (With regard to iLife, I really only use iTunes, iPhoto, and occasionally Garage Band.) I'd prefer not to hunt around and buy older software just because I lack QE/CI, so do you think these will run?
EDIT: I've heard from a number of sources that my wireless chipset, the AR5B93, will work automatically with the latest Snow Leopard 10.6.3 update. Can anyone confirm or deny that directly?
Anyway, I'm going to do the installation this weekend, as soon as I finish backing up all my stuff. 40G partitions each for Snow Leopard and Windows 7, and another 80G partition for all my personal files. Excitement~!