Thanks mate. Actually I received the rest of my stuff on Saturday and today. All looks good, though I think I'll lap the blocks as they look a bit dull and not at all reflective like you see in the forums.
And MY GOD! I didn't realise how big the Heater Core actually is! I was quite relieved when I put it up against my current case (similar dimensions to my new one) to see that it actually WOULD fit :P
Gonna take my rad back to my mums later today so that her boyfriend can make me a shroud for it. Just gotta wait for my case to come and my exams to finish and then I'll start work on it - along with those pictures