Quoted:
I am basically looking to build out a WWII collection. Already got a Mosin nagant.
List of my "collection"
Ar-15 with magpul furniture.
Albanian SKS (wood is beat up but she's a good girl)
1938 Tula production Mosin
CZ-82
Polish Mag98
What I would love to get this year
M1 Garand (Next on my list as soon as taxes get back)
Mosin Nagant PU sniper
Mosin Carbine
Nazi Marked K98
Russian/Yugo SKS
VZ.24 Mauser
What Else am i missing to complete this collection?
Given that several of the guns you already have don't really fit into a "WWII collection" I'm going to go out on a limb and assume you're not a stickler for 1941-1945 production. Opinions and preferences vary, so what trips one man's trigger may not do much for the next guy. That said, my list would look a lot different than yours. I've owned a couple of Mosin, SKS, etc. and got rid of them in favor of surplus rifles that exhibit a bit more precision (i.e. Swedes and Swiss). Also, while nearly everybody worships at the alter of the M98 Mauser, I'm not a fan. Sure, they're great actions but I've never really liked shooting the guns that much. The stocks don't fit me and I'm not a huge fan of the 8mm Mauser. Oh well, I guess that's why they make so many flavors of ice cream . . . tastes vary.
Anyway, here's a few you should consider:
• Swedish Mauser -- the Model 96, 96/38 and 38 are all great rifles and the 6.5x55mm Swedish Mauser round is wonderful.
• Swiss K31 (or K-11) -- the level of precision in this rifle is amazing. Swiss surplus GP11 is near match-grade ammo.
• U.S. Rifle 1903 or 03A3 -- The American bolt action rifles are simply nice rifles (much more shootable than the big Mausers, IMO), plus they shoot .30-06. The WWI-era 1903 guns are slicker, better made (machined parts), but the WWII-era 03-A3 has more useful sights.
• U.S. Rifle of 1917 -- The "American Enfield" looks clunkly and awkward, but it really isn't. Some folks (read: me) prefer shooting it to the 1903. I have mine set up with a Parker-Hale match rear sight that was originally made for the British P14 (no permanent alterations necessary)
• Finnish M39 -- if you've got to own a Mosin rifle, the Finn is the one to have. There's just a world of difference between one of these and a run-of-the-mill Russian Mosin
• British Enfield -- These are great rifles that saw official service for nearly 100 years (I believe they're still in use in India/Pakistan). Super slick/fast actions. I'm not wild about the round and what I consider to be somewhat sloppy chambers on the guns, but lots of folks love the .303. My preference is for the No. 4 rifles with the peep sight, but the No. 1's are great, too.
• M1 Carbine -- Just a cool handy little semi-auto firearm. If they didn't rival or surpass lower-end AR15s in cost they'd be about perfect as a home defense gun. Neat gun.
Whatever you get, I'd encourage you to favor quality over quantity. Instead of buying up every $200 mil-surp rifle you can find, I think it makes more sense to save your pennies a bit longer and buy fewer rifles of higher quality. For $400 you could have a Mosin Nagant 91/30, a Steyr M95 and a less desirable Mauser like a Turk or Spainish. You'd have three historic rifles, but none a truly great rifle. For the same $400 you find one NICE Swedish Mauser and have a true classic, a wonderful rifle that you'd be proud to shoot and own. The choice is up to you.
ETA: I actually like the SKS quite a bit. I sort of regret selling my Russian. That said, I don't care for the grenade launcher version of the Yugo (too long).