New member with some question and would really appriciate help.

Hello everyone, i am new to this forum and i got few questions for you all. If i posted this in the wrong section please move it to right thread and sorry for doing that.

I am 19 years old University Student and its time for me to buy a new USED car.
For some reason i am in love with 05 or 06 Altima and i have looked at few. My budget is pretty good i can spend up to like 13,000-14, 000$ on it. I can ask my parents lil more if i need to but dont really want to.

I have selected few Nissan Altimas 2.5 that are 2005 and 2006 all from
50,000 to 75, 000 KMS. All with no accidents, great condition and all about 11,000 to 12,000$.

These are some of my links of these ads
the first three ads are the ones that i will end up choosing from most likely but will consider other too.

http://toronto.kijiji.ca/ccars-vehicles-cars-2006-NISSAN-ALTIMA-SPECIAL-EDITION-4CYL-LEASE-SPECIAL-11-995-00-W0QQAdIdZ183894027


http://autotrader.ca/used_cars_Cars_details/NORTH+YORK_Ontario_2006_NISSAN_ALTIMA+2.5+S+*AUTO%2FAC+ALL+POWER_3668784.html?srcid=7036063&source=27&pgno=1&srt=10&CompanyID=20091005081451907&r=ontario

also one more question is
if the car is say 10,000$, and i get it from a dealer what do most dealers charge. What else will i be paying about 2-3000$ CORRECT?. I know about the taxes but what else??? can some one help me with that like how much are usually admin or fright fees or any extra. Also do i have to pay extra for warranty???

THANKS ALOT GUYS REALLY APPRICIATEDDDDDDDD FOR READING THIS LONGGG Post