A couple of ways I think.. first you can simply forward all the mail from the tyler@ address to a
tylerwhatever@gmail.com address and use the Gmail interface (or pop or IMAP the email from Gmail). You can even setup the reply-to so that email appears to be from the tyler@ address.
Second way is to use Gmail for domains, in which case it would replace your current tyler@ email provider.. this would involve changing the MX record for your domain I assume, but I've never actually used Gmail for domains.