Yeh Baby, Cafe del mar and you know it.
Other close contenders though:-
PVD - for an angel
Atlantis - fiji
Chakra - Home
The spacelovers - spacelover
Not strictly trance contenders:-
Faithless - Insomnia
Underworld - Born slippy
and finally the BEST EVER DANCE SONG :-
HYSTERIC EGO - WANT LOVE (although more speed garagey)
Just before I go, Best ever chill out song:-
Masive attack - unfinished sympathy.
P.S. If you guys love cafe del mar so much check out "energy 52 - cafe del mar VS MAW - So in love", awesome bootleg (basically cafe del mar with a fantastic vocal over the top and it actually works too) CHECK IT.