The easy way to do it is , get coins to one exchange where you think is high and get cash deposit to another and when you are ready wait for a good arbitrage opportunity and just sell at high and withdraw and by at cheap and withdraw
But to make good profit , you will have to go with little good amount and look out for pretty nice difference , somtime it is even 8$
Right now is possible to buy at
www.btc-e.com at price $237.3 per bitcoin and sell in
www.vircurex.com at price $261 per bitcoin. it is a big diference but I still think it is not profitable long term.
That is not possible , vircurex is a small exchange as you can see there volume is 0.02 btc
How do you plan to sell it ?
You won't make profit but loss on such small trade
One could sell more than 0.2 btc bellow $261 and still is a good difference, but not too much to sell. You are right, this is one reason why I think it is not profitable.
If we look at it! suppose we buy btc at 240$ on btc-e.com and then get that 1 btc to vircurex.com
as per now Buy orders you can sell 0.818 btc for 204$
so you are left with 0.18 btc which you can withdraw and sell for 43$ at rate of 240$
so now you have total of 247$ (204 + 43)
when you withdraw a little fees is charged i.e. 0.002 btc which is 20x the normal transaction fee
so about 6$ profit for so much work with no gaurantee
Good luck if you want to do it
Though i like their interest policy , 15% interest(out of the trade fees) to everyone with atleast 1 btc every 6 hours