Just wanted to clarify memory latency and memory bandwidth...is memory latency equal to the time it takes for the request to arrive at the memory system + the waiting time to service it? And, is memory bandwidth the rate at which the memory system fetches the data (not including the overhead for the data to reach the processor)?

The way I picture the difference between these two is that memory latency is by picturing a highway. Memory latency is how long it takes a car to go down the highway and back, while memory bandwidth is how many cars pass through a point in the highway every second. Through this reasoning, you could widen the highway (more bytes are handled at a time) or you could increase the speed limit (decrease latency) to improve bandwidth. Is it true that lower latency increases bandwidth, or are they not related in that way?

Oh sorry for the typo at the beginning, I meant to say "The way I picture the difference between these two is by picturing a highway"