Given that those new MiniMacs are selling for $500, you'd actually save $106 getting one along with Studio MX over the purchase of Studio MX alone.
http://www.macromedia.com/software/studio/special/studio_mac/?promoid=ATXH
MacConnection prices. . .
Studio MX by itself = $999.95
Studio MX with MiniMac = $893.95
Use the extra $106 to buy a keyboard and mouse :)