Thank you guys,

well, the handlebars (or drops as its called) is something that I never liked. Just the posture itself as you have to bend way lower etc. is something I was never a fan of. I understand that it gives you speed as there is less resistance etc. but its something that I would always try to avoid it.
The reason why I want mountain bike also is that apart from fun and commute I also want to have it as a type of exercise so if i have to work a bit harder then its a good thing. I used to do spinning classes but now that I moved country I decided to ride to work instead of a train as I want to lose weight that is beginning to pile up because of my office work.
I also looked at the CX and they seemed to be a bit more expensive (or am I wrong?) If you were me though and wanted CX which one do you think I should go and try with the budget I have?
Thank you guys, you are being very helpful and its very nice of you.