Thank you so much guys, your assistance has been fantastic!!
Next set of questions:
Firstly, I forgot to make comment re: craigslist - is it worth the discount on a second hand unit to worry about what could come with it - e.g. bacteria, etc? Especially for a newcomer to the hobby is my biggest concern on buying a second-hand setup.
TheTodd, by Dwarf Angel did you mean around 3"? I was looking at one of either lemonpeel/bicolour/flame/coral beauty which all grow to around 3" apparently (please correct me if I am wrong) - although would they be too boisterous in a reef aquarium?
Ingy, thanks for the Live Aquaria link - I used that and learnt a lot about which species will go with what, and am going to take a look at a few lfs
By the sounds of it Blennies and Jawfish require sand substrate -= is this correct? I am seriously considering a bare-bottom tank, or maybe a small amount of sand (under 1") - any thoughts/comments on this? Was going to paint the back and bottom of the tank black (on the outside of course!!).