alchymyth on "Anyone see the syntax error on line 155 ? I don't see it"

to get back into the appearance - editor, try for example to use FTP http://codex.wordpress.org/FTP_Clients to rename your current theme's folder to something else;
this should activate the default theme and let you back into the admin section where you can then edit the broken file, or where you can re-install your theme.