Audio specialist to edit some sound files I have

I need a pro audio producer---someone that knows what their doing ;)) I have a MP3 audio file thats about 1 hour long of a seminar that i have given and recorded. I need you to "delete" some sections of the audio and "insert" (2) other audio segments that i have recorded into the piece. I have all the times marked of when and where you need to do these things at. I just dont have the right producing software to do this. THe recordings that i have done are fairly good in that they sound pretty "natural" ....so that when you insert them they should sound good played with the "original " piece. BUT I would like you to 'Touch up" (if necessary) the 2 new recorded pieces so that the transitions sound as "natural" as possible when those sections are played....SO that it sounds like it was ALL recorded at the same time in the same place :) I WILL CHOOSE SOMEBODY QUICKLY AND END THIS POST EARLY.....I need this done ASAP....Please place a bid on this project....but please know that i will send you all the details so that you can more accurately bid the project......so we can adjust the bid accordingly to make sure its all worth it for you :)) Will result in more Future Work