anime posters?
Tenchi also sells posters and wall scrolls. There's an outlet in Ang Mo Kio and Toa Payoh.
Where can I get posters of these bands?
ebay has everything, or try Amoeba music if you live in L.A. or San Francisco...also fye has alot of posters.
Antiques/art shopping in Provence?
You could look for brocantes and vide greniers (kind of giant Yard Sales) in the area. There are lots of these in May/June and September. Select ones with lots of persons selling their stuff (100+ exposants) and arrive early (8.30 am maximum) to get ...