Dual boot Partitioning

3 moths ago i started using ubuntu when i first came to this forum and ask for help. I had a similar problem with partitioning a got all the help i needed. (partitioning is a scary thing :))
But after 2 months unity stopt working and win7 just slowed down to the point where it is unusable. So I decided to do a fresh install of both ubuntu and win7. (first time I just installed ubuntu in my last partition)

I would like to have an "advanced" partition scheme
I have 1,5 TB hard drive
And I will use win7 only for occasional gaming (and LAN party)

I would like to partition like this:
win7 system 100MB -- win7os 150GB -- ? -- extended partition everything else

Which partition should be in ? primary partition? (boot? root? swap?)

If i buy an 120GB SSD would be good if I partition like this:
SSD: boot 500 MB -- root
HDD: win7system 100MB -- win7os 150GB -- swap 4GB -- home (or extended if I decide to try other distros)

Which partition should not be on SSD?
Should I use GUID Partition Table in SSD?
If I use this partition scheme can I get rid of GRUB to boot as fast as I can? (or turn off waiting in GRUB)

Do I need boot partition?
Should I use btrfs filesystem?
Should I leave some space in extended partition to try other distros from time to time?

Thank you in advance
Urban120

P.s. How can I get my old username back?