Like this? That looks REALLLLLLY weird in preview mode..... ;)Basically the split modes break the content for you automatically. You can then fill in your replies between the breaks.
The <blockquote> style is the generally accepted quote style for HTML purposes.
I don't mind quoting things myself, because I edit everything out I don't want for the most part anyway, but if it's not acceptable, I'll try and learn this way. :)Use what you feel comfortable with, and what works best for you. I just wanted to make sure you were aware of the options since you spent so much time nicely formatting your quotes and replies by hand. :-)
Another nice bit is that it will stack the quotes for you as well:
The quoting options on the reply screen.
Blah blah blah.
etc.
Some reply to that, etc.