Telecity operates giant warehouses full of computer racks that connect users to the web. Telecity has 24 of these energy-sapping properties across Europe and boasts that it is the continent's largest datacentre provider. Telecity trades at 18.8 times broker forecasts next year, which is not cheap. Yet, with growth of 25% a year expected up to 2012, there could yet be some way to go. Buy says the Times.Contractor WS Atkins is buying PBSJ, a sizeable American peer, for about £178m. The deal takes the percentage of revenues earned in Britain from about 70% to roughly half and offers opportunities to expand in what should prove to be a lucrative American market, with plenty of work needed on roads, rail and power networks. Even so, Atkins trading on about ten times earnings ?would be a bold buy ahead of the Spending Review in the autumn. Hold says the Times.If Tullett Prebon shares were trading on the same multiple as rival ICAP they would be valued at 521p a share, some 45% above the current share price. The yield is a worthwhile 4.3% and should act as downside support for the shares. The company has benefited from volatility in the first half of the year and this is likely to continue for the rest of the year, although there will be a continuing impact from its reduced broker headcount. Buy says the Telegraph.At 34½p, shares in racecourse owner Arena Leisure are trading on a racy 31 times full-year earnings, but with the Reuben brothers, owners of Northern Racing, having recently raised their stake to 29.55%, this is no time to rip up your betting slip suggests the Times.Please note: Digital Look provides a round-up of news, tips and information that is impacting share prices and the market. Digital Look cannot take any responsibility for information provided by third parties. This is for your general information only as not intended to be relied upon by users in making an investment decision or any other decision. Please obtain a copy of the relevant publication and carry out your own research before considering acting on any of this information.