no, socket 754 is single channel & 939 is dual.
However, dual channel will give you under a 10% performance improvement - it's not like a P4.
Well, it would be the most expensive buy :)
It depends what you want to use your system for & your plans on future upgrades. The socket 754 3700+ with it's 1 Mb cache will beat every 939 except the FX-53 in games/3D - but that is probably the most powerful processor that socket 754 will ever get whilst 939 will continue to get more powerful releases.
worth a read
http://tech-report.com/reviews/2004q...0/index.x?pg=1