I wouldn't rush for Snow if i was you, it's still too early for it. I was able to install it and run it of course including gfx etc but it's still far from stable system. Still lots of things are needed for it. It uses to reset my bios settings to default values on every reboot/shutdown. Once the final version is out and all the tweaks are there i am sure you'll be capable of running it with no problems at all.

I would install and use the latest 10.5.7 version.

---