So there are four ways to mod this, correct? The TSOP Flash, Softmod, hotswap, and a hardmod/modchip.
Almost. You have two types of mods: hardmod and softmod. TSOP and hotswap are methods of implementing a softmod.
Wrong here Chad, the TSOP flash is a hard mod. There are solder points to bridge and you're physically modding the motherboard to disable the write protect of the TSOP package. There is more involved than the basic softmod, and it's permanent. It also loads before the dashboard or it's files are loaded.
Hotswap/game exploit installs are based on font exploits in the dashboard and it's files, and therefore are softmods.
TSOPs, LPC chips, and 29 wires chips are hardmods, and directly edit/replace the onboard BIOS.
@NewToBuilding: Depending on your level of skill with soldering...
- The TSOP method is the cheapest (Free+tools!). It's the second hardest to solder behind the extinct 29pin chips. It's also the second least likely to fatally fail.
- LPC Chips are hands down the best method to mod, since it leaves the onboard BIOS intact. They're the most robust feature-wise. Also you get control of the machine at the pre-BIOS level. They're the most stable. Once the chip is in and flashed, there's not much that can't be fixed, and the typical worst-case scenario is you just run a boot disc and restore from a hdd backup.
- Softmods (a la HDD swap or game exploits) are relatively unstable, and can render a console useless until you solder in an LPC chip. That risk being stated, they're evolved a loooooong way since the days of the original font exploits. They're at a mostly safe level now, and it's becoming increasingly difficult to brick a softmod. Regardless they are repairable via LPC chips, in the case that anything should go wrong.
- 29 wire chips are out-dated and useless.
- DVD firmware flashes are possible. They didn't take off, since the hack was released so late in the life span of the xbox. ALso it's expensive, since you have to burn each game to a dual layer DVD. Overall the DVD firmware hacks are a waste of time. They're considered more of a proof of concept that a viable hack.
LPC chips tend to win out in my opinion. Plus once you've got a box LPC modded, you can just install a soft mod and pop the chip out for use in a different console.