Very glad you are still in one piece, more or less anyway! Good to hear that A&E were happy to let you go home rather than keeping you in for observation, looks like you were relatively lucky as these things go, phew ...
'bouncing well' - at least you don't seem to have lost your sense of humour!
Hopefully the bumps & bruises will heal quickly, and that the bike is either salvageable, with the culprit buying you some new parts, or a whole new bike if it's too far gone ... I've been told that the best you can do (when you feel a bit better) is to take it to a trusted LBS for assessment before agreeing anything (driver's insurance should cough up, especially if there are witnesses, sounds like the police have got the evidence they need).
You might want to phone or e-mail Brenda and/or Rod Mitchell at
Cycle Law Scotland to get some free advice (they are also cycle campaigners) before agreeing to anything at all with the driver or his insurance.
Sending you a very careful
and some virtual cake ...
T
a wee bit ... 
, so best to get an expert on your side, at least for initial advice. Most of these specialist lawyers operate on a no win no fee basis if you need to fight and decide to go get some help. Alternatively, you can join the CTC for an annual fee, they include legal help with their insurance (even if you join after an incident, from what I've heard)...
- we mustn't be seen to be setting a precedent 
/under the wheels 
of cars and trying to claim 'their' 'free' feed 
.
How are you getting on, must be pretty sore 
, hope the drugs are helping!
