nkf.. that tent pitches inner 1st..
nit ideal if raining as inside your tent will be wet before you even start.
personally i would look for a tent that pitches outer 1st so that if its raining your inside does not get soaked
i agree that a SIG is essential, (though make sure you can lower it at the doors, so you dont have to keep stepping falling iver it, and personaly i would have a HH of at least 3000
also make sure you have a bit in the tent for your electric hook up to poke through!
if you are new to camping at night you wont want to be cold, which means you need more than an airbed and sleeping bag...
to keep warm i use a blanket (a picnic mat) followed by a foam mat, followed by an air bed, then a fleece throw as a blanket (ikea £3) then ME then a sleeping bag and duvet and if cold another ikea £3 fleece blanket
being cold at night is horrible and you really want to ensure that you are not cold!
i went to a tent show last year where there were loads and loads of tents in a massive field all on display. cant remember where exactly but it was in the north of west sussex i think