Also, you might want to check out Linn Majik 109s. (I'm a Linn fan. I have Katans in one system and Majik 140s in another). The Majiks are really great and are front ported. From Stereophile:
"Another unusual aspect of the 109 is that the 2K array is mounted on a dedicated cast-alloy chassis directly in front of the front-firing reflex port. The impetus for this design came from Linn Japan, which was pressing for a bookshelf model diminutive enough to easily fit into a small Tokyo apartment. As a result, Linn chose a front-firing port to enable the speakers to function properly when placed flush against a wall."
http://www.stereophile.com/standloudspeakers/linn_majik_109_loudspeaker/
"Another unusual aspect of the 109 is that the 2K array is mounted on a dedicated cast-alloy chassis directly in front of the front-firing reflex port. The impetus for this design came from Linn Japan, which was pressing for a bookshelf model diminutive enough to easily fit into a small Tokyo apartment. As a result, Linn chose a front-firing port to enable the speakers to function properly when placed flush against a wall."
http://www.stereophile.com/standloudspeakers/linn_majik_109_loudspeaker/