Christmas gift for BF for around $100-150?

I've been with my boyfriend for almost a year and a half and I'm have a difficult time thinking of one larger gift (around $100-150) to get him for Christmas. I bought him a signed Yankee book, and a Yankee shirt so far (he's a huge Yankee fan). I bought him a watch last Christmas, and a cool piece of Yankee memorabilia for his birthday. I know he wouldn't really use a camera or GPS, and he just bought himself an iPod touch. He's into cars, sports, typical guy stuff lol. Any ideas?