I just bought one of these and I'd like to say 
http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=32044
what a great item/deal 

they had it on sale for $16 when I bought it, but the website lists @ $20

it assembles easily, and allows better access to cleaning the top

would be especially handy for top replacement. 

I just thought i'd pass this info along. 

Dan