Attributes and Groups Help!

[visua]

I've been playing with the attributes and groups.

My actual products are made up of small parts, that users can buy individually. So the total price of a product, is actually cheaper than buying all the parts by themselves.

I would like to have 'check boxes' that let my users buy the 'groups' of attributes. Say, if a user checked Group1, it would expand with the attributes of that group, that my users could then check off. Like so;

[+]Group1 (If all are checked, X Amount)
  [+] Part 1  (Adds X Amount)
  [+] Part 2  (Adds X Amount)
  [+] Part 3  (Adds X Amount)

Is this possible? Thanks!

edit: Wrapped in code tags as to preserve tabs.