If I could do it over again I'd buy Rohens and Netters in the beginning and be done with it. I only had Netters and was debating about whether or not to buy Rohens the rest of the year. I was so close to buying it right before our head and neck exam on the last weekend. It's a very helpful resource but you may or may not have time to use it.
As others have said, the best thing to do for practicals is spending time int he lab. This was totally foreign to me and I was uncomfortable learning this way, staring in the cadavers, talking with other students, with no books or notes or anything. It feels very low yield, maybe it is. You have to put in a lot of time for it to pay. But it pays HUGE. You'll get an intuitive feel for the way different structures look across bodies. For example, I was master of the neck b/c although it can be a messy area, some of the nerves just start to look characteristic after a while. Certain nerves and arteries have buddies that you look for to make an ID or use as a landmark, things you just don't get from a book. I have always been much more comfortable with my books and highlighters, and I did well in lab from knowing the textbook stuff well, but I wish I had discovered earlier in the year how helpful it is to clock those hours in the lab.