Don't take this the wrong way, but my first suggestion is a writing class. Using so-called 'l33t-speak' was a fad, and as a fad I think it has already died, but nobody knows it yet.
There is no substitute for a good reference book. Try going to your local library and looking for computer books on TCP/IP or computer hardware. (They should be in the low-numbered dewey-decimal nonfiction areas, something like .000 to .100 or something.)
