So you would go for pro series? DO you think that having wacom tablet will change the way of editing images slightly?
Absolutely, the Pro version. I use a Wacom Pro Medium with my right hand and an Apple Magic Trackpad with my left hand and a keyboard in the middle of both input devices. I'm right-handed, and move the Trackpad on either side as I see fit or as my moods change - but I can't live without a Intuous tablet (that's what they've been called for years until recently when the Intuos Pro name replaced the Intuos name and the Intuos name replaced the Bamboo name - frustrating, that, for new users...).
I also will not use the word "slightly" - these tablets were designed to transform graphics users experiences in what I'll offer as a paradigm shift in workflow. I started using Wacom tablets in the ADB age, around 2000 (when they were bulletproof and still made in Japan). When I started drafting using AutoCAD and GIS apps, my billable production was 40% higher than my counterparts - and I was just starting out with SHAPE files and AutoCAD - Wacom tablets and my experience with them were my advantage at the time, and now I'm running my own company while my former coworkers are still working for others at pretty much the same tasks as a decade ago...
Wacom has created some pretty nifty tools - their pens and tablets generally blow away their competitors. You should give a Intuos Pro a try - they offer a 30-day option. Their software is generally pretty solid as well. One of my favorite bloggers of Wacom's products and what they're capable of is Terry White (Google "Terry White Photography") and you'll see what you can do with these tools. Cheers!