This is the General Store where you can buy nearly everything you need. In fact I haven't found anything missing yet!
Look at the links on the left-hand side: you can shop for Electronics, Photo, Books, Music, Home and Garden, Sports, Toys and Games, Medicines and Vitamins, Antivirus for your computer, Inkjet printer refills, Furniture, Televisions and even Autos.
With the Multimedia and Movies category as well you're just spoilt for choice!
Just click on the links!
Now you can also use the new stores for DVD, MP3 and other music formats - see below.