I have come across a little tip that I thought I would share. I am used to typing on a standard English-language keyboard with little transparent Hangul stickers affixed to the keys (less than 5 bucks on ebay).
Recently, my computer was out of commission so I had to use my roommate's laptop (no Hangul on keyboard). Thankfully, Vista makes it seriously easy to install a new input language. But, I didn't have any physical map of the Korean keyboard layout. So, when I would type, I was pretty much guessing at first - hoping I would get the right letter. As foolish as this sounds - it has really helped me out a lot!
When I first started learning Korean, typing was pretty much as fun as rugburn - I would even try to copy and paste from other sources instead of just typing it myself. Sure it took longer to copy and paste but it was a confidence issue, clearly, and I was not confident typing in Korean.
My tip is for anyone looking to increase their typing speed and accuracy. If you have a decent understanding of the layout (vowels on the right, consonants on the left, etc.) then try typing on a computer that only has the English layout but has the Korean IME input enabled! Nothing has improved my typing speed better than this. Weird, right? It must have something to do with how our brains form familiar pathways. I can now look at an English language keyboard and right the Korean characters on top without even looking at a reference, I can't even do that on a blank English keyboard! Maybe I shouldn't have admitted that...
It won't be helpful to all, but for anyone who was in my position, it's gold.