and this is my config file

# watch the following markets
# ["MtGoxEUR", "BitcoinCentralEUR", "IntersangoEUR", "Bitcoin24EUR",
# "BitstampEUR", "BtceUSD", "MtGoxUSD", "BitfloorUSD", "BitstampUSD"]
markets = ["MtGoxUSD", "BitstampUSD"],
#"BitcoinCentralUSD", "Bitcoin24USD"  # BitfloorUSD, , "CampBXUSD (closed), "BtceUSD",

# observers if any
# ["Logger", "TraderBot", "TraderBotSim", "HistoryDumper", "Emailer"]
observers = ["TraderBotSim"]

market_expiration_time = 120  # in seconds: 2 minutes

refresh_rate = 20

#### Trader Bot Config
# Access to Private APIs
mtgox_key = "blah"
mtgox_secret = "blaah"

#bitcoincentral_username = "FIXME"
#bitcoincentral_password = "FIXME"
#bitcoincentral_address = "FIXME"  # to deposit btc from markets / wallets

bitstamp_username = "blah"
bitstamp_password = "blahblah"

# SafeGuards
max_tx_volume = 1  # in BTC
min_tx_volume = 0.1  # in BTC
balance_margin = 0.05  # 5%
profit_thresh = 1  # in EUR
perc_thresh = 3  # in %

#### Emailer Observer Config
smtp_host = 'mysmtp'
smtp_login = 'blahblahblah'
smtp_passwd = 'blahblahblah'
smtp_from = 'myemail'
smtp_to = 'myemal'

#### XMPP Observer
#xmpp_jid = "FROM@jabber.org"
#xmpp_password = "FIXME"
#xmpp_to = "TO@jabber.org"