I like this 're-mix' of The Slow Train, originally by the Kings Singers. Done by lemon jelly.
I also like 'Love Is Psychedelic' by Fantastic Plastic Machine. Don't know if you would call it 'classical' but I love dance music that uses an orchestra.
Oh! And I love Finished Symphony by Hybrid.
I personally like any dance music that uses instrumental instruments. I just love the sound.
P.S. i cant insert links untill I have posted 15 times. But they are all on YouTube