Cheers man, not looked at that thread for ages, to be honest it came out realyl well, think that I could do better now though!

I use a lot of the artisan tools to smooth the low poly geo and sculpt it about, takes a while to get used to but once you do it speeds up workflow so much.

If ive got a ridge on an organic model i use the smooth tool (not the poly smooth tool but the artisan smooth tool) When you start to use it it looks like your destroying your model but using the push and pull tools you can sort it out with a nice disturbution of geo, then go it and move the bits that need to move to give definition, that how I made my skull.

I also use a smooth proxy for one side of the medel to mirror the get across but seeing the results.