Eek $60ish limit on a triple monitor stand for 24 inch monitors is a bit of a stretch. I have seen a project around here where some guy made his own stand with metal poles and 2x4s. I forget his total but it was a lot cheaper than the usual $300 stands.
Found it. Here is what I'm talking about. If your bro is up for it, it may be a really neat solution.
However, if you want to just buy it, I would first advise against the Ergotron triple monitor stand. It is what I have right now. I am currently running two 20 inch monitors on the sides and one 23 inch monitor in the middle. It is a tight squeeze. I will not be able to upgrade my monitors with this stand. It is perfect for 20 inch monitors though.
If I were to do it again, I would have purchased a
. It does get pricey, but I am not very good with making stuff out of scratch. Maybe you'll have better luck.
EDIT: Also found a $100 project by another OCN member here