Integrate Lame or other encoder in Sonar is very simple and works .
The Cakewalk Encoder is very cheap and give you the option to set some parameters and ID3 tag on the fly.
Cakewalk also using Lame-Encoder, so you have the same good quality of lame-mp3. But, I really don't understand the reason why Cakewalk sells this and don't give it as free.
It's a shame that Platinum or Professional users have to pay extra $10 for mp3 encoding.
_Markus