I agree with the last few posts - have I ever agreed with so many??
All of us buy a bunch of plug-ins because they look so neat, then discard them after we discover how to do it the same or better in PS.
Buy only what you feel is essential on all equipment/software, then cut that in half. Too many go overboard on new stuff. It's what you bring to the table in your business skills and personality that will make or break it.
Spend money on learning, it will always pay you back. Software and hardware will need to be replaced before you know it.
Doug