Control of view-ports with a tablet?

I keep finding myself having to put my pen down and reaching for my mouse to navigate around my UV or the 3D view-port. I instinctively reach for the space bar since holding that in Photoshop allows me to drag my view across my work. Are there any default key presses that are useful for working in tandem with a tablet and pen or do I need to perform a little customisation? If I need to customise my controls, can you direct me to somewhere that will help me through it? I'd like to be able to hold down a key and use a drawing motion to rotate or pan, I've already discovered a button on my tablet that is set to zoom by default. Thanks.