Best way to hold data

Hiu guys,
I would just like to know your opinions on the best way to hold data.
The data is in the following form,
ProcessNo PageNo
eg
0 0
0 4
0 3
1 5
1 4
etc
I was thinking of using a two dimensional array but would it be better to use a linked list or an other way? Can you store two items in the same list position?
Thanks in advance

I would add something to what the previous poster said.
You could also make it an example of a Property Bag pattern and abstract the properties to a container (for example a Hashtable) which would allow you to expand the property list more easily. As with most things, there's an up side and a down side. The up side being that if you get new properties, or have to take properties away you can do so more easily (with less invasion of the existing code). The downside being that there's a bit more work to do at the start.
The question to ask is how much of this do you have to do? If you're only doing it for example for homework and you won't be using it any more, it's not worth the effort. Likewise if your property list won't ever (or hardly ever) change it becomes less workable unless you have lots of them to do. But if your environment is more volatile or you have lots of it to do for your project it becomes a viable way of doing things.

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