Sarotech's' 2.5-inch ABigs player seems to be designed by an engineer with a gigantic budget. Why? Because it's got a 2.5-inch display, H.264 and MKV support, 1080p over HDMI and 5.1-channel out, a built-in FM transmitter, a photo viewer, an e-book and both PAL and NTSC compatibility. The 160GB version is available for $278 and the 320GB version is available for $328 from Korea, which isn't all that bad considering everything you get from it. If you still want the Korean flavor of this Sarotech but a bit more US availability, there's always Cowon's PMPs. They've got not quite as massive storage, but their format support is phenomenal. [AVING]
DISCUSSION
@Aoi: Depending on whether or not it sucks ...
So far Belkin and Griffin are the only two makers of FM transmitters I've found that work decently and even then, it differes between products.
I tried Kensington, and their transmitter completely blew.