Hey Bil / BOB. I kind of have an idea of what you want to do. With $600 your choices are going to be somewhat limited if you decide to build a brand new rig, but picking up piece by piece could work, in conjunction with some old parts. Main focuses should be large quantities of RAM, good cpu and decent sound card. You can start off with a new mobo, cpu, (power supply also prolly) and ram, use stuff from your old system and get up and running first, adding on from there.
PS. I do alittle bit of recording, mixing, sampling, multitracking etc. (Soundforge, Acid, Reason...) I learned alot from friends and messing around so im definitely not a pro... but i hope i can help!
Pieces to consider -
Mobo - Anything solid. You'll want a board thats main purpose is to provide stability and is easy to use. I would just keep an eye out for boards that utilize dual channel ram, most do lately. Onboard raid, lan (for comp -> comp transfers only, of course!), ide, sata, and alot of usb2 ports. I would suggest a non-gamer ASUS, ASROCK, ABIT, (other name brand board.) Older second-hand gamer boards would work too if you can get it at a discount. I suggest socket 939 since dual core AMD cpu's seem to be great and the multi tasking provided with such a cpu would help alot especially if you're tabbing in and out of different programs alot and editing on fly (like me) $100~ price range works. Also if you're interested in overclocking, research a good board that overclocks well... most n force 4 boards should do ok.
This ASROCK has both AGP and PCI -E... not nforce 4 board but good reviews, cheap, and lotta extras!
http://www.newegg.com/Product/Product.asp?Item=N82E16813157081
CPU - I would look into the AMD x2 or Opteron dual core cpus. Theyre alittle pricey but you are paying for basically 2 cpus in 1. The multi tasking ability should work out well as stated above. You can get an X2 3800+ for ~$290 and an Opteron 165 for $330. The opteron IS the better choice w/ the larger L2 cache (2x1mb), its reported overclocking ability (avg speeds of 2.5ghz/ core if sposedly) and better memory controller from my understanding. This cpu should keep you covered for awhile. Prices will probably drop in the coming months as the new AM2 prepares for launch.
http://stores.tomshardware.com/search_getprod.php/masterid=13510550/search=opteron+165
RAM - pc 3200+ ddr dual channel. Fast ram is nice but in your case you want large quantities. Gamers go with 2 gb (lately) and should be the same for music production, but you can start off w/ 1gb now and add on more later after you make some $$ off some new tracks ^^. More ram will help w/ multitrack editing since the comp wont have to access the hard drive as often. Other opinions would be to combine tracks/samples before hand into .wavs so you have less windows open. You can get cheap ram or stuff that OC good.. up to you. brands - corsair, OCZ, etc. (guesing ~ $100 - 1 gb)
Sound card - Its your call here. I still use a SB live 5.1 and its pretty much junk, but it still has a line in port on the back which i can connect to my mixer and work from. SB audigy 2 is like 80$ (?) and the SB Xfi is alittle bit more but newer. Both cards should be ok for recording at 24bit and 16bit mixdowns. You can look into higher end cards but that 'll = more bling. (~$100)
http://www.newegg.com/Product/Product.asp?Item=N82E16829102188
PSU - You might need a new psu for a dual core cpu. Get a trusted brand like Antec or Enermax if you can. < $100. See below first.
Case - You might need 1, u might not. Some cases come w/ PSU so you can do that first, or you can use 1 of your existing cases. Either way <$100.
Video - use 1 from old comp or EBAY or get something cheap.
Drives - Take em from your old comp. (cdr, harddrives, etc)
This is about $600 or so if you dont need a case / psu. I think its a pretty cheap build and should work out well for quite some time and allows expandability. I didnt look around too hard so im sure you or others on here can suggest other quality parts for reasonable price in your budget. Do your research! I hope this info helps and would love to hear how this works out and some tracks
!
Good luck!
- biz79
First post on this forum too btw