Congrats ... and happy mining!! LTC?
Not sure yet, It started out in my head as BTC, But I keep seeing the ROI go waaayyyy down, So yes LTC, I have never done it before so I will have to have a play around.
I bought on eBay a GPU 3 weeks ago ... around 60 EUR ... not as powerful as this one here, but it at least holds it 200 MH/s (on LTC) ... ROI back then would have been 90 days ... it slipped to 110 now ... let's see what the future brings.
For me BTC with GPU's is completely out of the question:
Hash rate: 200.00M hash/sec
Difficulty: 19339258.3
Value: $110.900/BTC
Time/block: 4806.9 days
BTC/Day: ฿ 0.01 $/Day: $ 0.58
BTC/Wk.: ฿ 0.04 $/Wk.: $ 4.04
BTC/Mo.: ฿ 0.16 $/Mo.: $ 17.53