I would look at the Colt Defender. it's under $50
a cheap airsoft pistol. its a lot of fun
Yes, you can buy a good laptop under 930 dollars. I have found a laptop for you
Sig
at best buy
Yes! Best Buy carries car stereos as low as 35 dollars, such as the Pyle 100 Watt. However, it also carries over fifty other varieties for under 100 dollars, which you can find and purchase in stores or online at www.bestbuy.com.
I assume you are asking about BB guns not Air soft guns. There are a few that fall under $50 but they are C02 not spring powered. Marksman makes a line of spring pistols under $50 but they are terrible and not worth the cost. See the link below for C02 air guns.
Pyle makes a cassette deck that is around 80 dollars.
There are quite a few reviews and suggestions to get the best wireless router for under one hundred dollars. A few of them are: linksky wrt 160n and TP-LINK TL-WR941ND Wireless N Router.
Gun shops, gun shows.
You can buy home whitening kits for under thirty dollars at your local Target ir Walmart. You can also have a done at a dentist for two hundred dollars.
Fairly cheap depending on what you are looking for. Best Buy has several under one hundred dollars.
A nice but affordable car to drive to college you buy from that is less than ten thousand dollars is very simple. Best deals on used vehicles under $10000.