Allotments 4 All

a what now??  ;D

ive seen one before where it had how to make like traps etc and tools from sticks and such like.

Well, it's lovely to have all that potential ahead of you!
I'd definitely grab the half plot, and cover everything with cardboard and mulch whilst you sort out where you want to start.
This is the most useful place to come for hints and tips - you already found it!
A couple of links I found useful (calendars/month by month guides)
http://www.gardenaction.co.uk/fruit_veg_diary/veg_planner.asp (you can customise this to your postcode)
http://www.suttons-seeds.co.uk/ have a month by month garden guide, but it might be too general - not just veg.
If I was starting over, the one book I would use would be 'The Vegetable Gardener's Bible' by Edward C Smith (David & Charles). Well argued and explained science bits, pix of REAL UNRETOUCHED veg, hints and tips, an A-Z veg guide, what plants go and don't go together. Written beautifully by a guy who loves gardening who lives in Vermont, applies well to the UK except we don't have to deal with raccoons and gophers. ::)
Oh, and watch what your experienced allotment neighbours are doing, and do what they're doing. That one never fails! ;D

I would definatly go for the extra plot I have two and found that by the time you have all your perminant beds planned i.e. Rhubarb, berrys, asparagus etc and a shed, compost bins and seating area if required,pond? there is very little room for anything else. You dont have to use it all for the first year, just cover large areas with weed suppressant and leave it until your ready to do something with it. Above all just enjoy it.
Regards
Chris

You can do bowling green finish with a scythe if you are expert enough. My husband's first wife came from a farm in Schleswig-Holstein and there they did all their grass-cutting by scythe.