Budget? Do you want a standalone tablet like an iPad that is good for drawing? Are you looking for a pen display like a cintiq?
Broadly speaking you have two main choices for an iPad-like thing for drawing. You can get an iPad 4 and a Adonis Jot Touch when it comes out. It might have good performance, we'll have to see when it's released. Or the Galaxy note 10.1 if Android is more your thing. They're the same price as an iPad Although the iPad has a vastly better screen.
Oooh Cintiq's are pretty, but way out of my budget. I'm looking at maybe 600CAD max. If I find that digital welcomes me back I might invest more money into something better but as start up I don't want to go over 600... 700 if it's really appealing. I'm by principle a hater of Apple but I have an iPhone so I've already dipped my toe...
If you want a Cintiq-type thing for less money then you'll want one of these: [link] They're missing a few of the nicer features of the high-end cintiqs but they're also a fraction of the price make sure to get the MSP19U and not the MSP19. The U has a better digitizer.
Or an iPad/Note 10.1 I personally think the screens on the iPads are so much better that it is hands-down in the iPad's territory (I'd rather have the nicer screen with an aftermarket pen). But the Note certainly works well enough. It's up to you