i would think it's national, because the s-video cables are $3.00 @ wal-marts in the midsouth, and i know the jump packs have been on clearance here and at targets here.
incidentally, these are the performance brand of s-video cables (interact)
jump packs of interact and sega are on clearance
good luck, and LOOK around CAREFULLY. i've found these in the phones section, computer section, anyplace, sometimes completely outside of ELECTRONICS
edit: and scan it YOURSELF if at all possible -- walmart has scanners now also