I just got a new tank stand from PetCo and I would highly recommend it for anyone looking for a cheap stand. They have all sizes, up to 90 gallons. I got one for my 55g tank on sale for $99.99 (normally $119.99). They have really good reviews on the PetCo website. I put mine together this evening and it only took about an hour. It seems very sturdy.
Here is the link to the brand of stands:
http://www.petco.com/Shop/petco_Product ... 10895.aspx
Not sure how long the sale lasts and how long the free shipping promo lasts.