Well, I'm on the road again. We're on spring break this week, and right now I'm typing this from a hotel in Prague. We got here on Saturday and are actually getting ready to board a train to Budapest for the second leg of our trip. Been having a lot of fun, and some suprisingly good eats. But anyway, onto work...
Another cheap college-budget place we frequented a lot in Sydney was China Noodle King, on the main George Street strip at the edge of Chinatown. It turns out that it's pretty easy to find delicious, freshly-made Chinese noodles in Sydney, and the Noodle King as we called it was our favorite. The decor is sparse but the food is delicious (the noodles moreso than the dumplings), and the location is extremely convenient. 
pork pancake - A$4 One of the best items on the menu (not to mention one of the best deals in Sydney) is this pork pancake. It's actually more like a pork sandwich, with fatty, oily pork in between two wonderful pancakes that are crispy on the outside and doughy on the inside. It's the perfect thing to split with a friend. 
stretched fried noodles with pork and vegetables - A$7.8 The noodles, though, are the main event. They come prepared in a plethora of different ways, but I liked them best fried. This is pretty much as basic as it can get, but the noodles have a great slightly-chewy texture to them, and the portion is huge. We went to Noodle King all the time; the value there is pretty tough to beat. They also have bottled green tea and other Chinese drinks in their fridge - the perfect accompaniment. I recommend this place highly.