capital allowance change in UK TAX

You can now claim up to £50,000 expenditure, on equipment bought within TAX year 2008-9, at 100% in the form of Annual Investment Allowance (AIA) Box 48 http://www.hmrc.gov.uk/worksheets/SA103F-Notes.pdf
It can be used instead of First year allowance which used to be 50%
You also now only deduct 20% not 25% off your carried forward from your WDA.

I haven't checked it so I'm not sure what First Year Allowance is now, if you want to keep doing it the hold way but I think it's also £20%.
david