I just sold my recently loaded Late 2011 15″ Macbook Pro and traded up (sideways, really) to an Asus Zenbook UX32-VD. Why the Asus? It’s a 13.3″ screen rocking 1920×1080 resolution with dedicated 1GB NVidia 620M video card. That, and it’s 3.3 pounds. It puts the Ultra in Ultrabook. It’s easily upgraded by removing the 12 T5 screws on the bottom. To remove the HDD, you’ll need to remove the battery which uses standard phillips screws (Thanks Asus!) Being an Ultrabook, 2GB of RAM is soldered onto the board leaving one DIMM slot for you to upgrade with up to an 8GB DDR3 1600 mhz chip. If you want to take a look inside, iFixit has a fantastic UX32VD teardown.
Here’s my setup:
Kingston ValueRAM 8GB 1600MHz DDR3 (PC3-12800) Non-ECC CL11 SODIMM Notebook Memory (KVR16S11/8)
(Note: if you decide to buy RAM for this machine, be sure it’s CL11. I learned the hard way when my CL10 dinged my desktop graphics score. Apparently the on chip Intel video doesn’t play well with CL10.)