Go to Badshot Lea garden centre asap.... they have a columbian rainbow boa there who is badass! I had a little hold of him yesterday and had to remember my wallet was empty as was my card before I bought him on an impulse!
Mind you, i've seen some brilliant coffee table vivs recently. They even had one in my local Sally Army shop for £10, listed as a 'glass display coffee table', but the fact it had vents and small holes in lower corners suggested it was used as a viv.
It's gone now, it's has a herms totoise in it now.