Whilst the Opera/IE hacks for accessing LiveJournal (in the memories section of lj_nifty) are all well and good, for those of us partial to avoiding RedmondO$ the following method works just as well.
Add both of these links to your Personal Toolbar or whatever your browser of choice uses (they work under Opera, Netscape and Mozilla on *nix and RedmondO$, should also work in IE). The first opens a window where one can type in the LJ username and go straight to the journal. It's not been escaped so you can append things like username/friends though this may well open security holes that I'm unaware of. The userinfo bookmarklet works by either typing into the box or selecting a username (useful when people use the LJ software's "link to users" feature that doesn't make a proper <lj user="username"> tag).
Both of these can be found on my web site, along with the formatted code at http://digital.raven.tripod.com/lj_code.html. Enjoy!
: In case anyone cares.