Thanks for the advice guys, As I say, I am a total noob... I have very little mechanical experience so, building up from a cheap frame, while attracticve, is daunting, not to mention the lack of tools... I have some spanners and allen keys...
Thanks though, I have heard a Fuji might be a reasonable investment...
Buy a front brake calliper and lever and a larger sprocket and you're sorted:
http://www.biddlebikes.co.uk/catalog/product_info.php?products_id=162