Ultegra and short fingers...
I always had issues with my stubby little fingers and brake levers. When I bought my first Ruby in 08, it came with 105 and those great little wedges that Specialized makes that fit in the lever that shorten the reach. They work great. On my crash-replacement '09 Ruby Expert frame, I went with Ultegra SL and used those little wedges again. I can't get over how much better the cockpit feels with those little plastic things. I can't recommend them enough.
The Amira looks to be Spec's response to the Trek Madone for women. A more racy bike. The Ruby fits my 'ride all day, I'm not racing' kind of style, and yes I have commuted with it. It was a fast blast, but I had to remove the seatpost and use an aluminum one with another seat to accommodate a clamp-on rack. On weekends, I removed the whole thing and put my carbon post and light-weight saddle back on. It was a pain. Thankfully, work is a secure campus (aerospace) with Pinkerton guards; I just locked up the bike outside my building and felt ok as the campus is fenced in and there are those guards around. I doubt your school will be as secure.
Anyway, I bought an inexpensive bike on clearance (Fuji), put on my left-over MTB drivetrain and flatbars and slid my alu seatpost-rack on it. Much better for commuting, as the wider tires make it more stable and easy on the bod as I am not in padded riding shorts. And I feel better not treating my Ruby like a beater commuter.
Tzvia- rollin' slow...
Specialized Ruby Expert/mens Bontrager Inform RXL
Specialized SWorks Safire/mens Bontrager Inform RL
Giant Anthem-W XT-XTR/mens Bontrager Inform RXL
Fuji Newest 3 commuter/mens Bontrager Inform RL
Novara E.T.A commuter/mens Bontrager Inform RL