I also have a heavy Machine. I love the idea of having a fancy desk that they sell, but could not bring my self to spend that kind money. I built mine. Completely out of plywood, 2x4 and 4x4. I added fabric sides and curtain. It has a cut out so my machine sits flush with the table. I took the scrap from the cut out and put "legs" on it. This way when I want to use my embroidery unit I just put it in the whole and set my machine on top of it. My table is huge. Something like 4 feet by 5 feet. And even though I made it 36 inches tall, I have cinder blocks under it to rise it another 12 inches. ( I use a bar stool as my chair). Here is a link to my post showing the actual table.
http://www.quiltingboard.com/mission...o-t210090.html I would say if you are handy with power tools ( or can find someone) making your own table may be your answer. Sorry if this is so long.