This is what I do pre-workout...IMO it kicks no explode's ass.
4gr citrulline malate
4gr beta alanine
5gr creatine monohydrate
20-40gr dextrose
20-40gr maltodextrin
Propel Fitness Water Powder Packet

If you can, go to the grocery store and get some stuff that you can eat before working out. That way you won't have to depend on the cafeteria..or you can supplement those meals with something from the store. Even when I eat perfectly pre-workout, I still take my shake...it's awesome. I f***ing hate lifting without it.

As far as something giving you a pump...you're going to make your own pump. People spend lots of money buying NO products that will make them look pumped up, but it really does nothing for you..........