UniversalWolf: If you do buy the game, try to resist the urge to play a Firearms character for your first try. That's a common mistake. If you're wondering why, there are lots of threads on this board that discuss the reasons.
This is true. Here are some other suggestions that are easier for a new player:
A grenadier: make molotov cocktails from garbage and throw them at your enemies. The explosions don't hurt you or your allies for some reason, so feel free to blast away!
A pure mage: Learn the harm spell for offense, and then you can branch out with any other spells that sound interesting. There are lots of spells to choose from.
A pure fighter: Melee combat is very powerful, and once you get a hang of it you can start adding some magic or tech to the mix.
There are lots of threads here with more details about designing characters. This is one of the best parts of the game, so feel free to try out some crazy character designs and don't be afraid to start over with something different. The game really rewards different playstyles and decisions (being good vs. evil, etc.).