Hi Quigs,
I've been using the 3L MSR hydromedary water bladder
http://www.paddypallin.com.au/equipment ... ry-3l.html for about 3 years now and love it (tough and durable; wide mouth, easy to fill - you do need to take it out of the pack to re-fill it but that's no hassle; excellent bite valve/hydration tube with lapel clip - I've never had any leaks and the lapel clip allows you to keep the mouth piece where you want it).
If I need to carry extra water I use a collapsible 1 or 2L Platypus water bottle -
http://cascadedesigns.com/platypus/wate ... e/product; and for wine (sometimes that's just necessary!

)? I don't think you can go past one of these!
http://cascadedesigns.com/platypus/wine ... ve/product 'Sounds like I am giving Cascade Designs a big plug (all 3 products are distributed by them), but I have no affiliation with them other than being a very satisfied customer. I find all of these products great quality, relatively lightweight and reliable - none of them have ever let me down.
Cheers,
JB
P.S. I also have the Large size in both the Pinnacle and the Jam2