So at the moment I am on holiday in Funchal - beautiful place but I am here mainly for the wine

I am originally from UK, and choice there is very poor and it is quite expensive. I love madeira and drink it for a few years now but mostly the same entry level stuff - 3-5 year old Blandy's from supermarkets. The best one I've tried was 10 year old malmsey and 2006 single harvest and I thought those were outstanding.
But anyway, the choice here on the island is amazing, and I came with pretty much empty bag (together with my girlfriend), so I really wanna use this opportunity to stock up! The limit is something like 10 litres per person so I can purchase quite a lot but I could really use advice on the range I should go for.
I know that a lot of you guys have been there and any help would be greatly appreciated.
I want to get a few bottles for special occasions (maybe some 20 year old+ stuff), and a lot of bottles of something good that you can drink, say, every weekend. I really like sweet/medium sweet and not so much on the dry styles, but still I would like to have variety.
Thanks so much in advance to anyone who could suggest some ideas!
P.S. man, they offer a free drink of madeira in just about any place you go to, including supermarkets, i love this place
