I'll move it to the beginners help for you.
Jobs done.
Also I would go with the Steppe Horse, I use it with my current char which also a 2h cav, with the same build as yours and the manoeuvrability in close quarters is very vital. Even if it is just 1, just 1 can be quite important vs agi chars. Desert Horse is also good though I'd say its down to personal preference.
Depends whether you like to stay in melee or just do drive bys.