Dezz, yeah mate, got a sub in the back too, that actually sounds like a pretty decent idea, then I just have to get some angle brackets or something similar to keep the sub+amp from moving around in the back.
On the other hand, that looks quite a nice setup MintR33, seems pretty simple to do also but I may have the problem that my amp is too long to fit in the way that you have it, I'm not 100% sure but will check that tomorrow morning.
Thanks for the ideas fellas, I'll have a poke around tomorrow (got a day off!!! ) and see what eventuates