Running, Jump Rope & Boxing can all cause pain in the shins "shin splints." Try this Dorsiflexion with ya littlest KB to start with, and see if alleviates the pain...

Of course the lower the angle of the shin in relation to the floor - the more of a stretch you get; needless to say don't go over doing it.

(ah the voice of *experience*)

Over at irontamer.com you can get a free copy of David Whitley's "101 Kettlebell Workouts" (I was a bit apprehensive about putting in details - but it was all fairly innocuous stuff)
It's free - so go get ya copy, print it out and start 'ticking them off'
This bloke David Bradley is doing a fine job of documenting the journey from workout 1 to 101, have a look at his Blog

And whether you use Kettlebells from Dragon Door or XLR8 Kettlebells from Newitts, this'll help you get the best from both them & you-yourself.
Roll-on twenty-ten and a fitter you.