Well today I tried to get the DS1307 working but to no avail.
I was trying to reuse the code used to drive the IR sensors but it doesn't have everything TWI/I2C needs.
The solution? Implement the avrlibc version of twi and follow the examples. Hopefully I will be able to do this tomorrow night.
On a side track my Arduino does everything is says it could, very interesting and polished little performer.