Thanks everyone! He/it seems comfortable in his 10 gallon right now, tried to lay it out similarly to the way it was set up in the store. Good to hear he should function fairly normally. He's quite tame too, what with all the being dragged to and from the vet's and having to give him eye drops and all.

Oh, is there a limit to how long your snake can be safely out if its cage? I'd assume if I'm holding him that he'd keep warm enough, but should there be set time limits?