I just used this solution from Middle Atlantic. Worked out very nicely. Lets me pick from a large variety of switches on the market, most of which have the RJ-45s and the status lights on the front. As Sofa King pointed out, the aesthetic advantage of having the RJ-45 jacks on the back is countered by the difficulty in getting to those connections due to how shallow the switch is.

While this costs more space in the rack (2U vs. 1U) than 39 Cent Stamp's elegant solution, it requires no drilling or modification and still looks neat.  It provides access to the patches without getting to the back of the rack and you can still see the status lights.

The Middle-Atlantic stuff isn't cheap, but it's still about half the price differential between the all-front switches and the front-status/back RJ-45 switches, and I don't like the very limited selection of those split switches.  An HP switch?  Really?

Middle Atlantic: [Link: middleatlantic.com]

see: RR2-3RCN (recesses the switch 3" from the front of the rack)

[Link: middleatlantic.com]

see: BR1 (allows cables to pass through from back of rack neatly)