I typed "lease to private customers" into Google, and the top hit was this one:
http://www.fleetdirectory.co.uk/finance_lease/
Don't know if that helps...
Personally (this sounds good coming from someone who bought his last car brand new!!) I think the best way is to buy, rather than lease BUT to buy nearly new. You save a fortune and get the best years out of the car with minimum depreciation. The first year is crippling: I know. I worked it out for my Octavia TDI....
They say buy at 2 yo and sell at 5 yo.
That way you get the tail end of warranty, pay a fraction of the new price, and sell when it's still worth a decent figure, thereby minimising your losses all round.
If you can live with an 03 plate instead of 05, that's the best way!
The other way to save heaps is to buy a new Rover. The 75 is a cracking motor, but you get no warranty. However, with the cash you save, you can buy in an aftermarket warranty. Make sure you get a very healthy amount hacked off the list, to account for the fact that no-one will want it when you come to sell!!
Examples of nearly new prices:
Vectra 1.8 Club new 15K, 53= 6260
Mondeo TDCi Zetec new 15600, 53=7610
Passat TDi SE new 18,400, 53=9550
The only thing is that the new models may be slightly improved over the old ones ie better equipment etc...