If you like indie music you'll probably be after this as it contains a lot of recent classics. However, if you've been into indie music for any length of time (say, longer than a week) you'll probably have most of the tracks on the second disc. Why release stuff like You & Me, Why Does It Always Rain On Me? and She's Electric on a compliation called 'The Anthems 07'? I can only guess it's to appease the new generation of fans (when did a 24 year old indie fan become old generation anyway?!) who think indie was invented back in January.
Get the anthology if you seriously haven't heard any of these before, otherwise stay clear of what is essentially a one disc release for most established fans.