When I did my first hackintosh, I couldn't remember how many times I did my reinstallation

So, don't worry .. you'll experience this many many times .. to reduce reinstallation, you may want to create a small partition for your backup, probably a 20GB partition should be enough. Get the Carbon Copy Cloner, it helps a lot.
There is no roll-back, I don't use easybeast .. was using it the first time but did the manual selection afterward. The first time you install Hackintosh on your machine, the most important things from mutlibeast are the following:
FakeSMC
NullCPUPowerManagement
Chimera Bootloader
System definition,
MacPro or iMac, whichever appropriate
Don't forget to select the System Utilities too. This will generate the kexts cache and fixed the permission after the above kexts get copied.
Make sure you've the latest multibeast too.
When done, try to reboot and see if you could boot successfully. If it is okay, using CCC, copy into your backup partition.. this backup will be bootable .. if you messed up in your configuration in main partition, just boot from that backup, use CCC to copy back the backup to main partition and go ahead playing with it.
I don't have much info on DSDT, there is one forumner here (goodswill??) who can help you on DSDT. What you need to do is to bootup in Win7, and extract DSDT and pass it to him.
Good luck..!
This post has been edited by wiraone: Nov 22 2011, 11:34 AM