Welcome to the Dark side Harry! you won't regret it!
I'd also recommend buying a specific recipe book for your Slow cooker, their well worth it.
You'll be amazed at what you can cook in it! if not, give it a month or two and you'll be fed up of stews and it'll be put in the cupboard out of the way (it's what we did till we found the cook book.)
I'm so impressed with ours, I've bought a second, smaller slow cooker. It's the perfect size for doing soups etc. Just throw all your veg and stock in the cooker beofre leaving for work, then when you come home, just beat the veg with a fork for a