I'll reply to Geoff, since he has covered more points than others. I don't think it'll get over 35 deg C, even in a hot summer, although the thin roof may act like a solar panel. To look at it another way, domestic air conditioning is almost unknown here in the UK. (Nasos - I'm at Coalville, about 5 mi NW of M1 Jn 22) In winter, temperatures of -2 deg C are common, and -10 is not unheard-of. So that sounds like insulation would be a good idea. I am unlikely to operate computers in this building - no electricity or comms services as yet, so it would be expensive. I shall look into elec costs... Ha! I must admit I'd have thought that humidity would be more of a problem than temperature. An argument in favour of electric heating rather than gas, I suppose... I think my parents have a dehumidifier they no longer use. Again, electricity is needed - I'll try and plumb it in to discharge on the ground outside for water disposal. I was afraid of that. Dehumidifier is probably less work, but more money long-term... I think that controlled environment of some sort is probably more necessary for books/manuals etc. than for hardware (if you'll forgive the qualified absolute). Perhaps I wasn't clear. It's all or nothing. 300 sq ft for L600 ($1000) per annum. (FWIW it was built by a local toyshop to store excess stock, apparently. Most recent tenant was the local council, who stored polling booths there for use in local elections.) On top of the rent there is a property tax ("Uniform Business Rate") - the agent are finding this out for me - and I shall have to buy racking and things. But I think it's a good deal. Bob was paying L42 per month for 25 sq ft - roughly ten times as much on a per-square-foot basis! Philip