Madeira - No. 1 Drink for Cigars

[jquirit]

So, I'm having particularly bad luck finding Madeiras in my area. They drink a lot of wine, but the more 'niche' ones aren't carried much out here. One thought they carried Madeiras but turned out to be a port. So, do any of you know a good online resource for ordering Madeiras that won't charge me an arm and a leg?