Basic Science books and Wills were provided by residency for us (most residency programs do this). I think a text reference is always a good idea to have around. I don't recommend you read the text book cover to cover, but as a reference it's a great book. Kanski and Yanoff/Duker are probably your two main choices in this regard. I went into retina and the Gass books and Yanuzzi atlas were vital for that field. I used my book fund for these big purchases. Most other question books and other references like Friedmans etc were a bit cheaper and my residency program gave me money for that each year. I actually won a Harrison's text book of Internal Medicine during internship (some research contest or something) and it has served as a pretty useful text to have around as well. I also bought some step 3 books, I think I got the Crush book and a few questions books or something like that. Take advantage of that free money!
