It all comes as parts that you have to assemble. Yes, it is limited in upgrades compared to the fastest available now. It can also be upgraded to a pentium 4 3.4 processor, 800 FSB, has 2 SATA ports( 150MB) to upgrade the disk space. It still can run IDE drives also. DDR ram is cheap and still faster than the old sdram.
Heres DDR-400 512Mb for $40http://www.newegg.co...N82E16820145026
Via chipsets usually dont support dual channels so just about any memory will do. I do like the crucial stuff but i would go with a gig of memory. XP runs nice on a gig of memory.
This gets you a new system that can tide you over until you can get a real fast system. It will still blow the doors off a 1 gig system. I have a athlon 1 giger system i built a few years ago and even the intel D101ggcl beats it at games. I have built 2 of the intel D101ggcl systems, and 2 biostar N7CG400 systems for people that are happy with them. I dont really like the ultra cases as they are kinda cheaply built( but not really bad cases) and tiger direct charges you tax on sales which i think is kinda cheap. No one can seem to match tiger direct for the prices tho. I have had no problems on RMA's(returns)and the rebates can be a pain to have to print out and send in. But thats just normal stuff. Again, be aware that ultra products are kinda cheap but they do what is needed to do. One thing against this kit is that the mach speed motherboard is no longer produced. They have moved on to newer systems. I have not had problems with the mach speed motherboards but they are not cutting edge either. Just basic run everyday stuff.
Its your decision but i just thought i'd throw that one out there as its only good for a couple of days.