Is this a good RX pack?

[mx400]

Well here it is http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=150071227888&fromMakeTrack=true I am wondering if this would be a good RX pack in my heli. I am running 5 digital servos and a gyro of course. How flights will I get? Thanks alot

[mx400]

Also will either of these BEC'c work with my set up? http://cgi.ebay.com/Medusa-Potencia-3-5A-5V-or-6V-BEC-MR-BEC-45035-5-6_W0QQitemZ290056472101QQihZ019QQcategoryZ34056QQs sPageNameZWDVWQQrdZ1QQcmdZViewItem?hash=item290056 472101

http://cgi.ebay.com/Medusa-Potencia-2-0A-5V-BEC-MR-BEC-35020-5_W0QQitemZ290056472070QQihZ019QQcategoryZ34056QQs sPageNameZWDVWQQrdZ1QQcmdZViewItem?hash=item290056 472070

Thanks again