Short term leasing / lease swaps etc

[Golaboots]

I'm coming to the end of my company car period and was thinking of going cash for car and leasing next time.

There are some deals to be had for leasing outlined in the Best leasing deals thread but I'm not crazy about signing up for a long term personal lease as I may change jobs during the period.

Can anyone recommend some sites for leasing a used car or one that's been returned mid lease etc?

I've seen a website called swapalease but there's not a lot of choice on there. I do about 25k miles a year which immediately limits choice somewhat.