then run to radioshack and get yourself a 100W soldering iron!! lol, damn i only have ni-cad batterys lying around right now.
That's exactly what I'm using, only it's not from Radio Shack is from an local "home improvement" shop and I bought it from the plumbers section!
If you absolutely want to see a battery blowing up you'll need to get a LiPo OR be very determined
Try this google search "battery blow up -Lithium -LiPo"; It essentially instructs google to only show "battery blow" pages if it doesn't also find "LiPo" or "Lithium" on the same page. From the search results ignore all results related to laptop batteries and mobile phone batteries - those are Lithium batteries. You'll end up with very few results, nothing to worry about.
Next try this google search "making an battery pack +danger": Again, this instructs google to show pages related to making battery packs that also talk about "danger". Guess what, the only danger is related to "LiPo"
There are lots of tutorials on how to make a battery pack, read up if you're interested.