OK my friend every one else pretty much has the right answers except one...
You do not have to change to tubs. You do have to change what size enclosure they are in. People who like the Glass Vivarium usually use a 20 gallon long. Depending on where you live they run around $75-$125 each. You will want to use this resource that some one has painstakingly made for those who use glass. I know a lot of people have used this and have a great husbandry set up. It is more expensive but if you really want to use a glass tank then this is the only way to go. http://ball-pythons.net/forums/showthread.php?t=56846
If you can not afford to put the money into a set up like this then tubs would be best for you. There is a DIY forum for racks and tubs. http://ball-pythons.net/forums/forumdisplay.php?f=68
Hope some of this helps. There are a lot of knowledgeable people on here. If it looks like some one is attacking you for what you are doing or if it looks like they are angry normally it is just because they are angry the person was mis-informed or the person is not listening.