Newer AMD processors are probably fine, though we don't use them ourselves and therefore can not vouch for their suitability. OtsJuke itself is very efficient and will not occupy much space on your disk. The SB Live has excellent audio quality for its price, well written drivers, and features four channels of output. There are many good CD-ROM drives. We have found Panasonic's to be excellent.
Most newer cards are fine.
OtsJuke is not fussy about the hardware you run it on, though it always pays to buy good brands with well written drivers if performance and glitch-free audio is a must.