Thinking about getting CDL A

Hi my name is Mike and I plan to go to NETTTS (New England Tractor Trailer Training School). I have a couple Questions as I am unsure if I should go through with it or not.

I have and have always had a CT Drivers licence. I have had 3 DWI/DUI in NY state and 1 in MASS, the most recent one is 9 years ago. However my insurance co has never found out or brought it up I never lost my rights to drive in CT for that and when I do background/criminal history check I can find nothing about DWI/DUI any where. Could it be possible that there is no record of them and will a prospective trucking company that I apply to know about them?

I also have a little criminal history. Most recently I did 6 months in jail for pleading to 3 charges out of about a dozen charges. I plead guilty to Failiure to appear wich I think is a felony, Failiure to repay a refund (I am unsure if it is a felony) for a painting contract that I broke, and posesion/sale of a dangerous weapon because I got pulled over and I had a hunting knife that had a blade size considered to be illegal, this is a felony. The charges that were nolled or thrown out were other failiure to appears, a couple driving under suspension, No insurance x2, no registration x2. And I think thats it. What can I expect when trying to get hired after I get my CDL? Am I unhirable? Will I not get payed as much with a lesser company?

How long does it take to get making some real $?
What is the best way to get a job?

I wish to do regional or local. I would like to be home everynight or every other night. Do those jobs pay less?

Is it really worth it to get my CDL? I know the recruiter at the school gets a commision if I go so I'm sure he is not giving me the whole picture.

Any insight would be greatly appreciated.
Thank You

Hi I'm Mike and I am thinking about becoming a trucker. I have a couple questions but first here is my situation.

I have 3 DWI in NY and 1 DWI in MASS the most recent one was 9 years ago. However I have a CT licence and I never lost my driving rights in CT. Insurance companies have never mentioned anything about them and when I do a criminal/background check they do not show up. Is it possible that companies will not find them either when doing a background check? Does this make me unhirable?

I also have a slight criminal record. In 07 I did 7 months in jail for pleading guilty to the folowing charges:
1: Posesion/sale of a dangerous weapon (Felony) I had a hunting knife with illegal blade size
2: Faliure to repay a refund ( I am unsure if this is a felony but I don't think so) I did not complete a painting contract and failed to refund the down payment.
3: Faliure to appear ( I think this is a felony because I did not appear on a felony charge)
I also had more charges that were nolled, they were to my recolection another faliure to apear, Driving under suspension x2, Uninsured x2, No registratipon x2. My license was suspended because I did not appear at a summons for a speeding ticket (85 in a 65) I think. My licensw was suspended for about 2 years I think until I payed the ticket and got it reenstated in 02/09. My work history is hard to show because I work off the books alot but not all I can show a little, and I was self employed for a couple years.
Will any of this make me unhireable?
Will it be hard for me to get a good trucking job?
Should I even bother?

I plan to go to NETTTS in 11/10 any feedback?

Thank you for any imput.