Move the Send button for emails, to the top right corner on email window.
When its a single mail we reply to it makes sense, the current placement of the send button.
When its a chain mail, argh its very annoying to scroll down till I find the send button. Sometime it by mistake goes back to the response field then I have to scroll back down.
This is the only time I open gmail to respond to mails, else everything is a single window operation.
Please please make this change.