Hi, My partner has a 2009 MacBook. Not 100% sure of the specs (think there's 2GB RAM, Core2Duo etc) but it was the original aluminium (before it became the Pro). Her laptop is really slow, she can't even watch YouTube videos as the version of flash is out of date. In order to get basic tasks like flash to operate, she needs to update the OS (currently using Leopard) but she's been advised that if she does so her MacBook will slow right down (I experienced something similar on a 2007 iMac). Would it be best to upgrade the MacBook - RAM, change the HDD to a SSD (if possible) or are we better off buying a new Mac? It looks absolutely perfect but then again it is over 5 1/2 years old. It still turn on relatively fast (the odd spinning beach ball every now and again) Are we fighting a losing battle trying to upgrade i.e. in a year or so will it be completely useless? She's an interior designer so uses CAD (not currently possible on this Mac) amongst other programs. If upgrading, I was thinking of the 11" MacBook Air. What would the best solution be?