>>Well - I made the key part of the data for simplicity - it doesn't need to be
>>
>>If you go for a KeyedCollection, wouldn't you need to subclass KeyedCollection first (and implement GetKeyForItem() ? http://msdn.microsoft.com/en-us/library/ms132454.aspx)
>
>Yes. Maybe not worth the candle but would be simpler when adding items etc......

The class at http://geekswithblogs.net/NewThingsILearned/archive/2010/01/07/using-keyedcollectionlttkey-titemgt.aspx looks like a good generic version to use.