If you're thinking of hanging out your own shingle, I'd definitely take the criminal classes. One of my professors, before teaching, opened her own practice with her husband. They ended up doing quite a bit of defense work in between the other stuff they actually wanted to do.T&E is a good idea; after taking the class last semester, it's really not a field you can dabble in (it's still pretty complex and arcane with the possibility of rather tragic consequences), but it's good to know enough to know that you should tell your client they should find a specialist.Admin law is one of those classes that everyone told me I shoudl take in law school since its so pervasive in our legal world, and I've been told the same of income tax. I've taken neither and will be graduating this May. Overall, I'd focus on what you want to focus on (the business/commercial stuff), but if you can fit in some of the other classes, it may be helpful down the road (and sometimes its just nice to do something different than your other classes - constitutional crim cases or a med mal class may be a nice change of pace from all your business courses).