Before I bought the official WotC dungeon tiles, or a wipe clean battlemat, or the Hirst Art molds, I used to use the Print-It-Yourself dungeon tiles from Skeleton Key Games, who just so happen to have an excellent Temple of The Spider Queen set: http://skeletonkeygames.rpgnow.com/product/3228/e-Adventure-Tiles%3A-Temple-of-the-Spider-Queen?it=1
These look stunning when printed, but can be a bugger to organise/layout on a gaming table.
