There may be better trading strategies which would give you much more profit.

Per day mtgox USD market volume is ~75K BTC.

As you already have 50K BTC, you can push the market  the way you want in short term, for profit .

No,  I am not converting.

Just saw this message from, Bitcoin Forum > Economy > Trading Discussion >  forum, by Rampion, and answering here as I am new to bitcointalk. 

https://bitcointalk.org/index.php?topic=142156.0
https://bitcointalk.org/index.php?action=profile;u=80216

so,  here is my answer,

1. trade no more than 1BTC at a time
2. you can startwith 100BTC for first time (only once), so than you will have some fiat money in your account
3. choose an optimum amount, like, $0.1, $0.2, or $0.5 (this is difficult, but if you are in hurry choose less)
4. lets' say you have chosen, $0.2
5. If BTC/Fiat exchange rate is up, (like, $25.5 to $26.7), place 1BTC sell order
6. If BTC/Fiat exchange rate is down, (like, $25.5 to $26.3), place 1BTC buy order
7. in the end you would have got much better exchange rate

this is not the quick way, but you would earn much more profit this way. 

all the best.

Received 2 bitcents from blockchain.info for opening online wallet, and for tweeting about it.

https://blockchain.info/address/1vijay5EABPWSUM3W2SD8KbHWbvHPiBJq

Even after 8 confirmations, it is not yet in firstbits. 

http://firstbits.com/?a=1vijay
https://blockchain.info/fb/1vijay

thanks.

contacted 4 sellers. waiting for response. nexus, UNIBTC, stasis and perjunsun.

planning to buy for 510SGD. Hoping to get 20+ BTC. 

Hi, first post. 

Anyone from Singapore willing to sell bitcoins / meet up?

--
Vijay