T68 is an excellent phone, good battery life, good sized disply )(can be a bit difficult to read in strong light though).
T68i about to be released - This is slightly different to the T68, looks very slightly different, branded SonyEricsson rather than just Ericsson (as all Ericsson and SOny phones will be) and updated software.
T39 is about to be withdrawn, although it is a very good phone.
Nokia will be releasing their first triband the 6310i at beginning of May (6310 already available but as a dual band only). This also looks to be a really good phone.
Simon