just buy a chrome kilo tt brah~
http://www.bikesdirect.com/products/...ial_chrome.htm
$385 shipped

if not, THEN buy the pista.
iro is not the way to go if you cant even make this decision by yourself. iro worthy parts are not going to net you less than your pista option.
iro frame > bianchi pista frame> kilo tt frame, but parts are tbd and unless you know what you're doing, how can we guarentee what you put together is better or worse than the bianchi pista?
and if you do know what you're doing already, then i dont understand why you still have to ask us.