Well welcome to Xbox-Scene and the world of modding
ok to upgrade to a bigger HDD you have to buy any size HDD you want, it can be a SATA HDD but you need a SATA to IDE converter for that so that's why i just bought a 80GB IDE and it works great. ok so here are a few tuts to help
The Art of HDD Upgrades for Softmodded XboxDid you backup your Eeprom.bin its a file that you do need backed up to make the HDD on a PC you need that file.
a lot of people use xboxhdm as it is simple i didn't because i have a TSOP flashed xbox it is different to a softmodded xbox because the bios have been changed to custom ones,
but to use XboxHDM you need a PC that use's 2 IDE connections not a SATA PC but XboxHDM2 can boot off a USB and im sure it doesn't just require you just have a IDE PC.
or Xboxdumper sounds good as well,Just keep search around on here to find guides and other peoples questions as it might answer yours as well good luck hope i helped out
also once you have everything like installed a new HDD you need DVD2XBOX that will backup your copy of your xbox game to your HDD and then you can play it
also you need to use xbpartitioner 1.1 to format your HDD so it will work so it will have a F:Drive
also look in my sig and click on X-Box HDD Compatibility there is certain HDD's that can be locked and can't be locked the reason for this is so that when it is locked the MSDASH will boot then it will go to your custom dash etc EVOX.
Also a disc called HeXen can help a lot with things as well
http://forums.xbox-s...howtopic=729570You will have to find that your self as im not allowed to give links as i don't know any.
Ps:Sorry if i have written heaps just want to help out