Make a practice to toggle Caps lock key when you go in and out of the chatterbox. The light indicator should give you the hint. Or modify your other application so that you can continue typing in lowercase and get the effect of uppercase You can also use some sort of macro program for the text.

Your question brings an interesting point: Now that we just don't read and write lot in the browser, especially in the 'TEXTAREA' if we can integrate the browser with editor (only for the text area) that would be neat.

Update: Imagine a 'check' button next to 'textarea' which can invoke a javascript which will take your typed text, open a seperate connection to some server, modify the text according your predefined configurable standards and put it back in the text area. Several advantages here, ranging from date,spell check, code check ..etc.. We can integrate with Preview section, so without having to put the load on the server, we can get the functionality desired.

artist