Got to get myself a set of the darker rear lights. They make such a difference to the car. Looks great on black. 100 quid is a good price too!
I can vouch for the H&Rs. Really nice drop, doesn't look too rakey, and like Rippers says, they work well with standard dampers. Although I would consider a set of uprated dampers at the same time for a complete solution.
I've had mine fitted for a year or so, maybe 7000 miles, and they do seem to accelerate wear on the dampers, which stands to reason, although It's still a decent ride. I'd say brand new oem dampers + H&R springs probably ride just as well as brand new uprated dampers + H&R springs, just that the oem dampers are having to work a bit harder, so they won't feel great for as long as the uprated set.
There's a newish set of dampers from VWR that sound excellent, as well as the usual Bilstein B8. The VWR dampers cost less if I remember right.
Anyway, rambling a bit... The lights look spot on mate. Very effective little mod