Most company's stage two cams will require uprated valve springs which is going to cost you another £150 or so on top.

You could go for Crower stage 1's, they don't need uprated valve springs and are a mid range cam so they won't give you a huge hike in power but will liven things up below 6000rpm...

http://focus.c-f-m.com/crowerstage1c...ocuszetec.aspx

CFM have a great reputation and will export. $367 is £222 at today's exchange rate, don't forget to add shipping and 20% VAT on top.