I'm a massive fan of Baraka. A beautiful, thought provoking film and one of the best Blu-ray reference discs. Available for just £5.99 at Sainsburys Entertainment.
There is a pricier 'dual play' re-release later this year to coincide with the release of the spiritual successor 'Samsara'. However I can think of no reason to watch this visually stunning film in standard definition.
Take a look and try something different. Highly recommended.