I'm using a 'Technika TT-07' Audio video sender that I bought from Tesco for £24.99 (about 3 weeks ago) with a Samsung SMT2100C. It even allows you to switch channels. My brother has the newer Samsung (2110?) and I can confirm this also works with the newer box.
Only down-side is it only has one SCART socket on the sender.
HTH
