CPU upgrade recomendation

I'm about ready to rebuild my desktop. My Powersupply squeels, my old crt died, and I'm still running an athlon 1.333 ghz and pc133 ram. Since it's been 2 years since I last built a PC, processors have really changed.

I'm looking at AMD Barton, and XP-M. What are the advantages of each? I noticed that Barton has 333 FSB, versus 266 on the XP-M. However, I will be wrapping up the package into a micro ATX case, so will the XP-M be a better choice for cooling? Or is the 333 FSB better?

I have a Radeon 9200 8x Agp, 40x Burner, DVD drive, 2 HD's, and 2 case fans going into the next PC. I'd like to use 1 GB of DDR 333 ram.

Any MoBo recomendations? I've built several PC's with Biostar boards and had good luck, but like i said, a lot has changed in 2 years.

 

Here's the MoBo i was just looking at:

CHAINTECH "7NIL1-SUMMIT" nForce2 Ultra 400 Chipset Motherboard for AMD Socket A CPU -RETAIL


Model# 7NIL1
Item # N82E16813152024

Specifications:
Supported CPU: Socket A AMD Duron/Athlon/Athlon XP Processors
Chipset: NVIDIA nForce2 Ultra 400 + MCP
FSB: 200/266/333/400MHz
RAM: 3x DIMM support Dual Channel DDR400/333/266/200 Max 3GB
IDE: 2x UltraDMA 133 up to 4 Devices
Slots: 1x AGP 8X/4X, 3x PCI 32-bit
Ports: 2xPS2,1xLPT,1xCOM,6xUSB(Rear 2),1xLAN,1xGAME,Audio Ports
Onboard Audio: Cmedia9738 5.1- Channel AC’97 Codec
Onboard LAN: 10/100Mbps Fast Ethernet
Form Factor: Micro ATX


Any comments?

 

this is my personal favorite
http://www.newegg.com/app/viewproductdesc.asp?description=13-127-166&DEPA=0

ABIT "NF7-S" nForce2 Chipset Motherboard for AMD Socket A CPU-RETAIL

Specifications:
Supported CPU: AMD Duron/Athlon/Athlon XP Processors
Chipset: NVIDIA nForce2 SPP + MCP-T
FSB: 400/333/266MHz
RAM: 3x DIMM for DDR333/266 Max 3GB, 2x DIMM for DDR400 Max 2GB
IDE: 2x ATA 133 up to 4 Devices
Slots: 1x AGP 8X/4X, 5x PCI
Ports: 2xPS/2,2xCOM,1xLPT,SPDIF Out,6xUSB2.0(Rear 2),1xLAN,Audio Ports
Onboard Audio: nVIDIA SoundStorm APU(Dolby 5.1) + 6-Channel AC97 CODEC
Onboard LAN: 10/100Mbps Fast Ethernet
Onboard SATA/RAID: 2x Serial ATA, RAID 0/1
Onboard 1394: 2 Ports
Form Factor: ATX

 

I have that chaintech board, with a Barton 2800. It has been a fine combo and has held up well, and dual channel memory is nice. I don't run 1gb of it though, just two 256's. 1gb of memory is nice if you really need it, but if you don't I've read that 256's work considerably better in dual channel mode than 512's.