By Custom ROM do you mean Uruk Droid?
If so, this is the install guide: http://code.google.com/p/urukdroid/wiki/EasyInstall
So is this the best way to go? Are there other options?
I'll tell you the one thing which bugs me at the moment is that I cannot buy apps through the web browser because "this app is incompatible with Phone"
Has anyone figured out a way to fool the marketplace into thinking the 101 is a different tablet with the same specs so that I can only download apps which work.