The bar at the top is Titan Panel, which conveniently shows things like, co-ords, latency, bag slots remaining etc - quite handy.
For unit frames I use PERL Classic Unit Frames which pretty much let you customise anything you like with respect to unit details, incuding things like showing 3D portraits, dimensions of bars etc - I quite like them.
I've ripped the interface apart and customised it using CTMod. If you download the complete CTMod package it includes the bar mods which let you move pretty much anythng to do with the interface. This also includes Buffmod which shows buff timers etc.
Other mods include DoTimer (which you will appreciate as a rogue) - it shows time remaining on any DoT damage/debuffs as well as timings on things like pounce and main (so cheap shot and kidney shot timers are in there too) which let you perfect stunlocks