First of all, welcome to ECF! There's a lot of information here, and plenty of people who are willing to help with any questions you might have.
I started with a couple of disposables, got some "cig-alikes" (V2 Cigs), then egos, then a couple of APVs. If you know you like vaping already, I would still suggest getting an ego or two, because if you do get something more advanced, the egos can then serve as emergency backups. I would, however, recommend getting something that's variable voltage, even if it's one of the little go pass throughs that only have 3 (I think) voltage settings. They're still super easy to use, but you can play with adjusting your vape a little. I never had a Spinner, just a couple of ego-C Twists, but I hear many good things about the Spinners, so I would check those out if I were you (my Twists didn't last very long at all before totally dying, but some people have great luck with them).
If you really want to start with something more advanced, you can get an MVP 2 from 101 Vapes (when they're in stock) for about $40. They're pretty small (not as wide as a pack of cigarettes, but a little taller), simple to use, inexepensive, and you can use a lot of different toppers on it.
For toppers, I would suggest getting one of any clearomizers that you want to try. From my personal experience and preferences, I would suggest a bottom coil, like the Kanger MT3. I've tried about a dozen kinds of clearos, and the Kangers have always been the best of them, but your preferences might be different.
E-liquid is a totally personal thing, so I won't even go into recommendations, but check out the e-liquid forum here for some ideas. I would suggest getting the smallest bottles possible until you know if you like something or not, though.
