Jumping on the "you don't need the stats textbook" bandwagon. There's a few tables and charts in the textbook that you will need in order to solve practice problems in the lab manual, but the text is available at Thode library. Photocopy the pages you need, and save your money. Just be sure to do your photocopying maybe a week or so in advance of the midterms - don't wait until the day before; it's much harder to get your hands on a copy when there's a hundred other students doing the same thing.
Also, don't buy minitab, just use the computers at BSB during scheduled lab times. There will be TA's going around, and lots of other students, so you can ask questions if you're stuck. Everyone was pretty helpful last year, and getting the labs done in groups made things way easier - not that the labs are too difficult to begin with.