Hiya,
Hyundais are known to have attractive initial prices, but
maintenance (petrol consumption, repairs, etc) are really high. I
had a Sonata before (as a second car and not used much), and even
after 5 years, the auto tranny was gone and I had to scrap it 'cos
it was too expensive to repair. Not much power too (Hyundai has
been known to "accidentally" over-rate their horsepower figures -
and later had to give an apology for doing so in the US). Still,
Hyundai has its team of loyal fans - as well as its team of loyal
critics....just like everything else in this world.
Its hard to answer your question on how much you have to fork out
monthly. It differs greatly from person to person - depending on
how you drive, how much you drive, how much loan you take, your
driving records, insurance scheme, etc etc. Whatever you do, please
don't be conned into taking too long a loan.
If you want something affordable and practical though....I'd go for
the Tucson between the two. The Santa Fe is far too huge and heavy
(in both weight and maintenance)....hardly a "zip around town"
car.
As for reviews for Hyundai, what better way than to hear it from
the locals themselves? Right here: http://www.clubhyundai.org/. Go to the forums
section.
Good luck on your decision!