Emmet Cummings said:

Well, I'm sure my palate has room for expansion; however, I do like the
crunchiness of the iceberg variety.

Then you should consider the Batavian (also called French crisp or summer crisp)
'loose head' varieties. They have many of the advantages of leaf lettuces
(including having more nutritional value), but have a texture more like iceberg.

'Sierra' and 'Nevada' are widely available. (May I recommend Pinetree Garden
Seeds as a mail-order source: http://www.superseeds.com -- look in the
French vegetables section.)

Cos or romaine lettuces have a little more substance and crunch than most leaf
lettuces and are also far more nutritious than iceberg.

--
Pat in Plymouth MI

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)