Thanks Mike, but there is nothing I can use on that whole page. The last two items are affordable, but of no use to me to solve the problem. The rest of the items are far too expensive and won't solve the problem anyway because they do not take the source of the noise out of the equation, they just try to filter it. (That approach has never worked).
Go with E's suggestion then. But I'm obviously not understanding the question because the SOTM sound card is excellent. If you are looking for a more budget friendly suggestion - then E can help best.