Suggestions for a used hybrid bike

[RoadRider400]

I am thinking about upgrading my jalopy of a hybrid to something a little nicer. Since recently moving job the office commutes are by train so the bike does not need to be stored in a ropey bike storage unit. I am looking for a hybrid on the second hand market and the criteria is

Straight bar
Under 12kg
No suspension
Maximum budget £350 but preferably closer to £250

I am limited to what crops up within 30 miles so I need to make the list as broad as possible and sporadically running the list through that auction site in the hope of something local to crop up. Suggestions welcome either from experience of the bike or knowing anything that meets the above. I hope to add some lesser brands to the list with the intention of getting better brake and gear components.

I currently have written down
Trek FX2 or FX3
Pinnacle Lithium or Neon
Giant Escape
Specialized Sirrus

 

[Jameshow]

Look at boardman bikes - nice light frames.
Also Cannondale too.

 

[vickster]

Whyte R7 range, eg Cambridge, Portobello, Shoreditch, Stirling probably out of price range (where's 30 miles of your location, these are fairly common around London) (there are some WSD models too if you're female/small)

 

[simongt]

I am thinking about upgrading my jalopy of a hybrid to something a little nicer.

If the frame is still good, why not invest your cash in upgrading your present bike - ?
I've done that and it's very rewarding as it's the result of your own labours.

 

[Llama]

Is Cycle to work/cycle scheme offered by your employer? if so it might be worth a look as you can save around 20%