hi eurofighter...
not very good at this aviation stuff yet... junior aviator in that sense
... but what u can do which i think may be of help is to compile data from multiple websites.
for runway direction u can go to this website
http://intranet.mssinet.gov.sg/nowcast/wx.html
basically they will show the wind direction and stuff.. thats a factor tat determines which runway is normally used. dunno whether this is applied to international airports like changi. but this website is good for determining r/w direction for seletar (which is for my case)
for aircraft landing i guess u can go to any local website that displays all the arrival and departure times of the various flights. or head to changi to grab that brochure from the information counter on arrival and departure times from every airport, every airline including flight number as well... its updated and valid for 3-6months. so u can probably go and grab it... i'm not too sure whether they'll display aircraft type and license plate though... got my last copy a year back. but u gotta ASK them personally cause its hidden under their desk.
this website
http://www.caas.gov.sg/caas/level3_external_site.jsp?FOLDER<>folder_id=2534374302023984&ASSORTMENT<>ast_id=1408474395181072&bmUID=1084680134365
has the license plates of all locally registered aircrafts including SIA & SIA Cargo SilkAir and Youth Flying Club for that matter.
hope that helps ya? anyone reading this, do correct me if i'm wrong... thanks... oh yah! anyone knows the arrivals and departures of Seletar Airport?