My head is now in place to start my own software company.

I have a feeling my contract won't be getting renewed next year because the work will be complete this year and they won't be needing me.

Go for it! It's a very different process though, I started in October and haven't really progressed. Taken a maximum of £4.30 so far! Yes it's been very difficult pleasing all these clients! I've mainly been building apps and hopefully they will pay up when I don't go live with their products!