I installed a SSD and Windows 7 last weekend and all working pretty well. One issue I've got is when I try to open pdf email attachments in Outlook the system defaults to Office Picture Manager or sometimes Windows Media Player.
Apart from saving the attachment to my desktop and opening with Adobe Reader separately I haven't been able to find a way of resolving this.
I using Office Pro 2007 with Windows7 Home Premium 32 bit. And Adobe Reader X