Complete chilli novice

Next year I plan to try out one chilli.  Never grown them before, don't use them much but there is such enthusiasm from those that do grow them, I'm keen to give it a try. 

So which variety should I go for, I want a low to medium heat and easy to grow.  The freebie seeds with the mag included 'cayenne' which calls itself medium heat, would they  be a good place to start?  Especially as they are free