darkslategrey,
I might suggest you go to Jamie..............
http://www.boomtownhobbies.com/Xtrem...4_p/esl403.htm
He sells a very inexpensive boom for the CX now. If you go to the website you will see his "existing" boom CX set up. I spoke with him this week on a parts order for myself and he told me that his new and improved boom should be out in two weeks and he said it would be worth waiting for. He has finished his new Lama boom already. If you look at the page I provided you, you will see the old CX boom and the his new Lama boom which is his new take off for the CX due to come out. Also notice the replacement parts costs, verrrrrrrrrry reasonable! Thats what put me off from getting a boom for my CX at the LHS , they cost to much and kill you on replacement parts.
Good Luck
JPee