I was thinking of upgrading from my late 2010 13 Macbook Air 4gb Ram, 128 SSD to the current ones with 8 GB Ram and 256 SSD or to a 13 Macbook Pro Retina with 16 GB and 256 SSD. Laptop has performed great, but I am running out of storage and battery will probably not last much longer. Also was thinking of just upgrading the SSD drive to a larger Transcend one and getting a new macbook air battery. Laptop is used for basic word processing, basic spreadsheets, photo editing and internet browsing. Appreciate any recommendations. Thanks!