I like the cab a lot. And for what's it's worth, I don't think it's possible to have "too much RAM", especially now that's it's relatively cheap and insures that there's no sound cracking. Well, okay, it may be overkill if you go for more than a Gig, but other than that throwing as much RAM as possible definately doesn't hurt.
But you also helped me with my back and forth on whether to make my cab black with blue T-Molding or a dark blue with Black T-Moulding. I think I'm going with the latter, as it makes the cab stand out more (black cabs look nice too but seem to dissapear in the shadows to me).
Good job once again.