I am happy to see that Linden Lab is currently showing off inworld turntables as one of the many items to be bought in Second Life. LL is promoting their new XStreet takeover/merger with a prominent click box front row center of the http://www.secondlife.com/ homepage, which then leads the viewer into shopping through XStreet.
If you decide not to buy turntables through XStreet (because you want see the product inworld, use the product, touch the product, hold the product, inspect the product, etc) make sure to come visit
New Optimizes Store Inventory
All-in-one shop for any inworld DJ and Club Industry Professional.