This is not the .net area of the forum
;;;My plelimenary research has shown that these components are available on the web for purchase but I think they only work properly on a MS platform/newest versions of IE.
Is incorrect. There are many cross browser WYSIWYG editors out there. If you dont need a SERVER SIDE spell checker then go for FCK editor (im sure its free). I havent used it but am aware of several people who do. You want a tool that gives you a spell checking facility with NO clidnt side dependencies then you cant go past http://cutesoft.net/ASP/
It is well worth the money. you will see mat41 having it out with the devlopers (Adam very very helpful in the end) on the forum due to them claiming IE 5.0 + compatability - If certain Updates (details in cutesoft the forum) are aplied it fails however is now fixed. The forum posts are interesting but fruitful in the end. You get what you pay for. Buy it, you will not regret it.
Wind is your friend