Amazon (through Woot) has this Pyrex 1110141 18pc Glass Food Storage with Multi-colored Lids as a Gold Box Deal – $27.99, almost half off.

Storage set includes three 2-cup round, two 7-cup round, two 4-cup round, and two 1-cup round containers with nine plastic lids
Made of clear, nonporous glass that won’t warp, stain, or absorb odors
Designed for easy nesting and stacking; seal-tight lids ideal for food storage or taking foods on the go
Bowls safe for use in microwave, refrigerator, and freezer; oven safe to any baking temperature, but not broiler safe