A Word of Caution: Creating Your Custom Ubuntu Disk

I have the unfortunate title of PC repair man in my family. As all of you might have immediately assumed correctly, these are Windows systems. So to try and make my miserable job easier I figured 'Why not load a bunch of tools onto Ubuntu and respin the son of a bitch?' Now i have just started dabbling into respinning. So let me tell you all how it went, it was stupid. I tried Reconstructor and Ubuntu Customization Kit in just about every way conceivable. I was served with divorce papers because i neglected my kid trying to get this thing to happen. I first thought maybe its my CrunchBang iso, maybe for some reason these programs don't like CrunchBang 9.04. So i tried Xubuntu 9.04 with no luck. I tried Ubuntu 8.04, see i was in it for the Long Term, no luck. I kept getting a login prompt that i had not set, so only God knows the password, maybe Jesus and the Holy Ghost too, but that's for scholars to decide. By this time I was sleeping in the car because my wife had enough of my crying. I used my best friend Google to guide me to the answer. I threw my laptop into the Gulf of Mexico, and that didn't work. All hope was lost. Suddenly there was a glimmer in a post i just happen to pass by. It said that some program called remastersys existed. What is remastersys? I googled to it while in my first session with the marriage counselor. I swear i love my wife and kid, but this is important. So after reading up on remastersys it was slowly beginning to spin a wheel somewhere in that lump of fat i call a brain. Where had i seen 'remastersys' before. Oh well I'm sure it's nothing. So I booted my CrunchBang virtual machine because I was going to figure out how to install it and make it work, and i was probably going to need vacation time from work, to get it done. I hadn't bathed all weekend but that's not important because even if remastersys wasn't in the repos i was going to figure it out, i will recompile this program with my own bare hands out of mud and sticks if i had to. And then suddenly while i browsed through my CrunchBang 9.04 virtual machine I happened to see a program entry named remastersys. Some idiot made remastersys a default program and didn't mention anything to me about it. What is going on? Needless to say not only was it pre-installed, but i was able to create a live iso of the programs i wanted. Now i was just testing remastersys, my iso ended up being 741MB which is too big for a cd, and i am unsure if livecd iso can be booted from a dvd. See I'm not bright at all, but i installed LXDE and i'mm sure that takes up some space, there was other stuff i could do without. All in all it was an awesome learning experience. I highly recommend remastersys to anyone wanting to do something similar. Thanks to the developers, and thanks also to the team that creates CrunchBang Linux it was genius to include remastersys on it. In case anyone is curious i wanted to add antivirus programs onto CrunchBang. So I installed ClamAv, AVG8, and F-Prot. I wanted to also add Avira and Antivir, but couldn't get them to go. For Malware i wanted to use BotHunter, but I couldn't get it to go, not a huge deal though that one came with a livecd of its own. If anyone has any advice on additional Antivirus or Anti-Spyware/Malware tools that i could use, please feel free to let me know I could really use the advice.