On-line game stores are all over the place but it's good to find one with such a personal touch. I've bought several different ranges from them - RPG books, dice, miniatures - and haven't had a single problem. The service is always excellent. Their on-line stock counts are usually accurate, as well, which makes a change. They're not afraid to tell you something is out of stock, but they go out of their way to get it in (the D&D Spell Compendium, for example, was notoriously difficult to get in the UK but they did it and kept me up-to-date the whole time). For D&D miniatures especially I can't say enough good things: being able to see individual mini stock counts, order just exactly what I need, and get it in 1-2 days really is something else.
Can't recommend them enough.