Reaper Miniatures has an unrivalled and diverse array of every conceivable miniature genre that you could ever need for your table top.
All miniatures are modelled to a 25mm scale (near as dammit 28mm) and offer minis from your classic DnD ranges in their Dark Heavens Legends line to the eclectic/sci-fi/steampunk Chronoscope line. Suitable for all budgets, you can get some of their massive minis from their Bones polymer range for pocket money prices when compared to getting the metal equivalent.
Not only that, Reaper also do a range of great quality paints, some that are specifically engineered for the Bones Miniatures line.
If you're looking for a proxy piece for your favourite game or want to bulk out an army then you'll find what you're looking for here. Spend time browsing as there's hundreds of the little blighters, literally!