@KT: nice UI man, it looks good. Similar to mine except I use the default blizzard unit frames since I never really look at them anyway with my 24" monitor (hurts the neck lol). Here's a nice little rogue mod that I've had for quite a while... you might find it useful if you don't already us it or a variant. It's called poisonpouch. Basically a button attaches to your minimap and said button allows you to select and poison your equipt weapons with whatever poisons your have in your bags.
http://wow-en.curse-gaming.com/downloads/details/6469/poisonpouch-updated/