Austria: Creation of Habsburg Spain; Split of Habsburg House

I thought it would be interesting to rp the Habsburg Empire, more specifically when Spain becomes part of the Empire and when it splits. I think that fits in well with the War of Spanish Succession and War of Austrian Succession. I hope it's not too awkward for you to do a marriage and a divorce as your first RP with me. ;o;

I know that I have talked to you online about doing an rp for the incorporation of Spain into the Habsburg Empire and its eventual split. I was thinking about doing two threads for this, but I thought that I would post here and get your opinion first. Anyway, I started my initial research here:

http://en.wikipedia.org/wiki/Habsburg
http://www.historyworld.net/wrldhis/PlainTextHistories.asp?ParagraphID=ins
http://www.enforex.com/culture/habsburg-spain.html
http://upload.wikimedia.org/wikipedia/commons/9/95/Habsburg_Map_1547b.jpg (map of Empire)

But anyway, let me know what you think - I know you have a lot of stuff to reply to and have been busy with work, so we can always take it slow, though I don't anticipate this being a long RP. Thanks!