Welcome to the Friar!
Try the veal!
As someone who is as much an enthusiast of miniatures games as RPGs (even if I hardly get to actually paint and play the former these days), I take it for granted that not everyone knows about Litko.So I'll just add the hearty endorsement of a satisfied customer. Great variety, cutom jobs, and superb customer service.
Mind if I recommend pipe cleaners? Cut them to 1 inch/2.5 cm lengths and fold, then place on the miniature. They work on almost any miniature, even ones the tiles won't (For examples gargantuan creatures) and cost a lot less. We use Red = bloodied, green = my warlocks curse, etc. If you want you can use tags to mark them as which type they are.
@canageek, that's a good suggestion. While it may be cheaper, effective and certainly the way I should go, those counters look too cool for me to ignore :)