Ahh the Accu-Chek Combo you shall be getting, pretty much same as the Spirit but with bluetooth and a software upgrade and a Linkable blood monitor. It's quite a nice pump saying that i've only used this pump vs the original spirit. The bolus calculator works briliantly and really simple to use. Fasting is hard but to be honest works out for the best in the end, try 6 hour sessions so 2 hours fasting and 6 hours testing, if you can do more the better. What i did was start at 0000hr(fasting from 2200) testing every hour till 0600(refer to the other thread on here about basal testing) which means next slot from 0600-1200 your already fasting and all you need to do is wake up and test for 6 hours. I did 1 hourly tests just to get it out the way and get it as tight as possible.
Hope you get on well with it.
Good luck.