We have a Vizio tablet, and it's more than adequate. But I don't think you can get them now.
If I had the money and needed a tablet I'd get the Galaxy tab, yes.
But I'm thinking a mini-computer (net book?) or small laptop would be better, unless the small virtual keyboard isn't an issue. Definitely check out the Galaxy and see if you can be productive with it.
I see the Vizio tablet as more of an entertainment machine than production. Movies, games, and music, about all I use mine for, and light web-surfing.