Like most people, for us the money aspect is a big consideration and we couldn't afford it at the moment. There is about £1k difference, which means that the 46x3500 is almost twice the price of the 46D3500.
We currently use a Sony 32FD1 100hz crt set which we bought new some 9yrs ago which still gives an excellent picture on all inputs, for Freeview we use a Sony Freeview box on AV1.
We would like to upgrade to a 46 but are rather nervous of making the wrong choice since this is our first venture into the LCD market and we want to buy wisely, but not at the cost of something unsuitable.
If you or any other members can give any further advice it would be most welcome.