In the milsurp price range I like the Chinese 3 mag chest pouches. They have grenade/utility pouches that can carry 120 rounds of 7.62x39 providing a total of 4 30 round mags (incl. the one in the rifle) plus enough loose rounds for a full reload.
Most of the euro comblock mag pouches have belt loops for 50mm belts and do not work with USGI pistol belts or ALICE gear without sewing. The Polish 3 mag pouches and the later EG pouches (green webbing closures & belt loops rather than the earlier gray) will fit on USGI pistol belts. Be careful the euro AK-74 (5.45mm) pouches. Some of them like the Bulgarian and Russian pouches will not close on the longer 7.62mm mags.
If you want a full LBE setup, the British '58 pattern webbing has mag pouches that are perfect for 3 AK mags each. Sportsmans Guide has the '58 web sets for about $20.
For higher grade but more expensive stuff, check out Lightfighter.com. The link below:
http://www.lightfighter.com/item.html?PRID=1169394
points to the AK pouches by Tactical Taylor. They fit USGI ALICE or Molle equipment as well as TT's vest bodies. Browsing around the site, you will find all kinds of pouches and vests from SOE, Blackhawk, TT, Eagle, HSG, London Bridge etc. Lightfighter has quite a selection of good gear.
HTH
Drue