In winter 1999 I wanted to build a 400MHz pentium II with a Riva TNT2 and 64MB of ram. Unfortunately I was in highschool, so money was tight and computer parts expensive. I had flyers from every computer shop in my town. What I really wanted to buy was an ABIT BE6-II for said 400MHz pentium II, but could not afford it - not even close. Hell, I couldn't even afford a Lucky Star 6ABX2C or 6VA694 + a 366MHz Celeron... Not to mention all these motherboards were ATX and I had an AT case at the time. I did some maths, and even with a cheap and rather dubious A TREND ATC6130 (i440LX, AT form factor) + a 333MHz Celeron I was still quite a bit over budget, despite not needing to replace the PC's case.
In late spring of 2000 I contacted a relative who owned a computer shop in the capital, and asked him to get me a motherboard + CPU + SDram for me in my budget... he sent me a Lucky Star 5MVP4 with NO AGP slot, and on board everything + a 400MHz K6-II and 64MB of PC100 SDRAM... I didn't realise at first how important having an AGP slot was, and didn't really mind since I took the Voodoo 2 kit off my 586 to use in my new K6 build (and it was FAST compared to the 586), but 1 year and a few months later I ended up selling everything again because of this.
If money was no issue, and I had the knowledge I have right now, I'd buy an ABIT KT-7 + 750MHz Athlon.