Tabl10s - Some transports are capable of I2S output, others are not. It is possible to add I2S to some.
I would highly recommend the Northstar transport if you dont have one yet. The Transport is around $2K new and with $300 in mods, it will astound you. Modding your transport to have I2S would probably cost in the $1000-$1500 range anyway.
Steve N.