Well I do use a wort chiller, use LME, and steep specialty grains. I use white labs' yeast picked for the kit by the LHBS. I brew outside on a propane cooker, 170000btu.
I wasnt going to get a bigger pot until I was going to go for all grain, that way I could really spend the money and get something nice and big with a built in thermometer and spigot...but that is a ways down the road.
The reason I thought about getting the new pot is it is only $30 and my batches so far havent even dissolved all of the LME. Both have had lower starting gravities (1.04) so I would imagine if I tried to do anything higher it definitely wouldent dissolve.
Im mostly concerned that there would be a major drawback to enamel that I dont know about, such as how some believe aluminum conributes to alzheimers.