The above suggestion: mining scrypt/alts is technically more profitable at the same costs compared to mining btc directly. Mining scrypt requires a little more build and setup if you go that route.
Current best priced asic hardware is either antminers or avalon type clones running around 200GHs for about 1.4 btc. They are in the marketplace and group buy forums.
Is really 200GH/s so cheap for in hand units ?