There is both a HDD and a 24GB SSD in my Ultrabook.
I will install Windows (for testing in feature, as its free in university) in the HDD. I need to decide what to do with Ubuntu, as its the system which I'm using for education and for my job (Python Developer).
The SSD works very good, but some people write its not a good idea to install an operating system on an SSD.
If I will use it as the main Ubuntu partiton, the 24GB for system is not enough as its my primary system, and new games from valve is around 7 GB and in some years i will collect a lot data in system. I don't like reinstalling Ubuntu, its not Windows :D.
So, what is your idea? To use all SSD as swap (RAM is 4GB) and install all the system in HDD, to use part of SSD as swap and other part as /system, to use SSD as system and make partition for swap in HDD, or something else?