2 Halfords Exodus Cycle carriers. The Cycle carriers will fit on most roof bars, cost £60 each and have been used once. Everything you need to carry 2 bikes including cross bars etc. £80 the lot plus P&P at cost.
The roof bars are the "universal" type. As long as the bars have a gap underneath them and are not flush to the roof they almost certainly will. They're the aluminium aero style, not the shitty square steel ones as well by the way!