Macquarie Airport's put and call agreement to acquire an additional ineterest in Sydney and Bristol airports should be a value accretive deal if the options are exercised.

Transurban's recent underperformance to some extent has been compounded by the sale of Macquarie Infrastructure Group's 2.8% interest in the stock which has soaked up the marginal demand. Now with the stock overhang cleared, Transurban offers a good investment opportunity.A strong set of traffic statistics for the March quarter confirms the quality if the underlying assets. A likely acquisition of Pocohantas Parkway in Virginia should give Transurban a beachhead in the US.

Spark Infrastructure is a recent issue that deserves a close look as a result of a high degree of earnings clarity until 2010. The group has already started delivering on its prospectus forecasts,havng secured two construction contracts since January. SKICA offers exposure to the largest listed portfolio of electricity distribution networks in Australia. The seed assets are natural monopolies in their respective franchise areas and as such are regulated.