delete word after or around cursor in VIM

I'm now switching to VIM from TextMate. I found ^+W in INSERT mode very useful. However, I'd like to delete not only the word before cursor, but the word after or around cursor as well.

I did some googling, but the only thing I can find was ^+W to delete word BEFORE cursor.

Normal mode:

daw : delete the word under the cursor    
caw : delete the word under the cursor and put you in insert mode 

I think it's just daw

daw - delete a word

What you should do is create an imap of a certain key to a series of commands, in this case the commands will drop you into normal mode, delete the current word and then put you back in insert:

:imap <C-d> <C-[>diwi