and ended up getting myself some Mizuno Wave Inspire 5's.
I have not used them but they are in a similar category to the shoes I use, light support. You may also get on with:
Asics 1120,1130 and 1140 or 2120,2130 and 2140. You can usually get the previous year's models for cheaper from JJB, now you know what you like.
Saucony Mens ProGrid Trigon 5: I like these, I like Saucony!
Saucony Paramount: Darn expensive (£110 rrp) but a real nice run. You can get them cheaper if you look around.
Brooks Adrenaline GTS 9: I have a pair but they gave me achilles issues. Some people love them though.
Lightweight but with support:
Mizuno Wave Elixir 4: what I plan to run a marathon in. Fairly light but with some good support.
Saucony Fastwitch: racing shoes with some support. Incredibly light, I love them up to half marathons. Heavier people will get away with up to 10k.
The above is a range which will fit in to your support needs and you may find knocking around for cheap on the 'web.