My recs...
*Rifle:
AR-16 carbine with 16" barrel and a short Quad-Rail forearm. The makes mentioned above are all good.
*Sniper Rifle:
CETME or other HK-91/G3-type rifle in .308 - or an FN FAL. Or if you want something for hyper long range (and have lots of cash), an XM-107 Wind Runner or a Stoner SR-50 (both .50 BMGs). The Ruger 77 Mk. II is good but for the price it's a bit much for a bolt-action - at least in my opinion. The CETME costs about $200 less than the Ruger 77 and it's a semi-auto. 20 round mags for it are about $8 from Shotgun News.
*Handgun:
Colt, Rock Island, Griffon, Para-Ordnance, or Auto-Ordnance 1911-type pistols in .45 ACP or a .357 Magnum revolver with a 7 or 8-shot cylinder. A Taurus 627 Tracker (7-shot .357) with a 4" barrel is a good choice. There's also the 8-shot .357 Taurus 608. Then there are also SIGs and Glocks (as mentioned before) which are always good. Nothing less powerful than 9mm is adequate for defense. Anything more powerful than .45 ACP (namely .44 Magnum, .454 Casull, .50 Action Express, and .50 Maximum) runs the risk of over-penetration. I'm not sure about the ballistics of the .38 Casull. If you opt for a .357 for defense, always load it with heavy-grain/high-dram jacketed or semi-jacketed hollow points, Black Talons, Golden Sabers, frangibles, or any rapid-expansion/low-penetration type ammo.
Oh, and if you don't have one already, you'll also need a shotgun. No arsenal is complete without a combat shotgun. Anything that takes detachable box mags that hold at least 10 rounds is supreme but harder to find than standard fixed tube shotguns. I recommend pumps above autoloaders because autoloaders are more suseptable to external elements like weather and whatnot. They also handle differently depending on the type of ammo you use. Pumps, on the other hand, will function the same regardless of what type of ammo you use and regardless of what kind of weather you're experiencing. Naturally, for combat, you need something reasonably compact. Unfortunately, the shortest you can go legally is an 18" barrel with a 26" overall length. The Mossberg 500/590/600, Remington 870, Winchester 1200/1300, and Ithaca 37/87 are probably the best choices as far as fixedtube guns go. Of all of them, I tend to be a Mossberg advocate. Also, you want at least a 5-round (4+1) capacity and a barrel no longer than 20" (keep in mind that you don't want the mag longer than the barrel).
Hope that helps.