Aluminium Profiles

[mel_earp]

You seem to be describing my thoughts right down the middle :-). I especially agree with the comments about the profile. At £20 a metre for a big enough section, the costs very quickly mount up. A full BlackToe takes not much more than £20 worth of MDF - but the ready cut kit is expensive.

[wizer]

I think I will use the green moisture resistant MDF when I do mine. Mainly because it's nicer to work with. Deciding on MDF was the easy bit. Working out the mechanics and electronics is driving me loopy ;)