The wired hood is going to be hard for that price (but certainly worth having, I missed out that feature on my current jacket and regret it), and the material is generally going to be own-brand (not all bad, but I'm not a fan of Hyvent). Sprayway is generally pretty decent kit (Cotswold have the same thing for £69, but if you get it in store there is no P & P), but its not the lightest.
Have a look at
http://www.outdoorkit.co.uk/productlist.php?category_id=331 (there was a headsup on OM), and see what Cotswold have. A breathable jacket that packs down fairly small is doable for that price, and some pretty good brands as well (Patagonia (if your XS), Marmot, Mountain Hardwear, etc),but its tough to find a wired hood at that price. Its generally a higher level feature, and the cheapest one I spotted on the Cotswold site was a Rab Pinnacle at £100 (a v. nice wired hood, but heavy ME jacket is there for £110). If nothing else, you get to try them on (always very important), even if you order them from the net, and they might have clearance stuff instore which might fit the bill.
Personally (and this applies, no matter what your doing), I'd say get the best you can reasonably afford. The extra twenty-forty quid you will spend not only means you get things like a wired hood, but you'll get better material and choice. Spend £80-100 and you'll probably buy better, and it will last longer. If your doing D of E, then you'll be using it a fair amount. Good boots, good jacket and good pack are where you should spend your money, because they are the things that will really count if they don't work right. If you want to economize, there is an old thread on D o E recommendations on Outdoor Magic. Buy cheap, buy twice, and you'll be uncomfortable into the bargain.
OM
http://www.outdoorsmagic.com/buyers-guides/lightweight-jackets-buyerand39s-guide/2024.html has avery basic guide to buying jackets , and a look around the site should bring up something which can help. Another site which is really handy is
http://www.buachaille.com/ - which reviews gear and does price comparison. Trailspace.com is a US site which also does reviews, and is very handy for US gear that might pop up here on a deal. Also buy this months 'Trail'. There is the annual gear supplement, which has a list of all the jackets around, with reviews, prices, etc. Good way to find what you want.
Good luck.