cheeb wrote:
<<
I'm upgrading a Matrox G200 on a BH6 with a 600 celeron @900 Don't want to spend much $ and don't want to fight compatability problems. Any suggestions. >>
You did not mention what kind of games you want to play. If you play Glide games, then the Voodoo cards are the way to go. Since you owned a Matrox G200, I assume that glide games is not one of your choices.
GeForce2 MX provides you the most bang for the buck. It is not the cheapest but it does provide the most features and the fastest performance for the money.
Let us do a quick comparison.
The Voodoo3 2000 (OEM, not Retail) can be bought for about 50 dollars. The fill rate of that card is 143 million pixels per second in single-texturing and 143 million pixels (286 "texels"

per second in single-pass dual-texturing (single-pass multi-texturing). 16-bit color.
The GeForce2 MX (Retail) can be bought for about 90 dollars. The fill rate of that card is 350 million pixels per second in single-texturing and 350 million pixels (700 "texels"

per second in single-pass dual-texturing (single-pass multi-texturing). 16-bit color.
If you look real closely, the MX is quite similar to a 175MHz TNT2 Ultra with the exception of single-pass dual-texturing. In that situation, the MX is twice as fast.
Here's the math:
Voodoo3 2000: 143/50 = 2.86
GeForce2 MX: 3.89
The MX is rated at 3.89 versus 2.86 for the V3 2K. MX is the better buy. MX is obviously not the cheapest but it provides the faster performance for the money. If you only had a PII 400Mhz, than this rating won't be too useful since in that case the CPU would be the major bottleneck. A faster card won't do you too much good unless you play a lot of games that uses a lot of polygons and supports hardware-accelerated T&L. However, you have an overclocked CPU running at 900MHz. This rating is important.
In addition for most bang for the buck, the MX provides more features and more memory than the Voodoo3 products. For instance, you can play games that uses S3TC on the MX but not with the Voodoo3. Those fancy pixel shaders and all that goody-goody is not possible on the V3 at an acceptable performance--assuming it can run at all.
If you are looking for the cheapest card, the Voodoo3 2000 and the Viper II are your best option. Viper II is cheaper but problems will arise with that card.
If you are looking for the most bang for the buck, the Geforce2 MX is your best choice.