I found the hard core excel part funny ;0) But for RAM I believe Sandy Bridge only supports 1333MHz and needs to be overclocked to 1600MHz I believe that's correct but if not someone will correct me. As for an SSD is this going to be boot drive?
1. If you get a 2500k processor then you will want to overclock it so you will need a good aftermarket cpu cooler.
2. If you get over 4GB of ram then you will need a 64bit OS. You would probably be fine with 4GB of ram and a 32bit OS, but it is up to you. There are pros and cons to either way.
3. You left out the optical drive.
4. If you read the user feedback on newegg.com you will run as fast as you can AWAY from OCZ drives, as well as a few other brands.
If USB 3.0 on the front is a requirement by all means go another route. I'm a huge fan of Antec cases but there are plenty of quality enclosures out there. Make sure to let us know what you end up deciding!