The problem goes a lot further than just getting a bull bar and hanging MORE lights on. The stock lighting on the front of a US market MkIV are worse than zero for fog, but ESPECIALLY snow. Even the factory "fog lights" are in the wrong place, and US DOT (FMVSS) forces those truly horrible headlights to be on when they need to be off. Not sure about US in 2001, but I think you are lucky enough not to have DRL, though.
To be able to see anything in snow, you need lights that put nothing up from a horizontal line and next to nothing down. US DOT headlights scatter a LOT of light upward, and reflect a lot off of the snow on the ground. THAT is what illuminates the snow between your eyes and what you want to see.
The entry level solution is to put a relay in the headlight low beam line that turns them OFF when the fog lights go on, and use the Hella H1 fogs that were at one time available for the lower outer grille positions. Problem with that is those lights aren't that easy to aim and don't have enough intensity. I could not find that kit anywhere, so the only thing with decent pattern that will fit in such a small space is the Hella Micro DE projector fog lights (you can get them from Susquehanna Motorsports...
www.rallylights.com). The HID version (about a grand) are actually pretty good. Be careful: just because a light say "fog light" does not mean it is. In fact, maybe 2% of the offerings actually have the right pattern (essentially a horizontal line 5 degrees max veritical spread, and usually about 160 horizontal spread.) Also, just because a light has a brand name or a big price tag, does NOT mean it has decent pattern. Shine any potential light on the wall in a dimly lit area. If 100% of the light isn't in a horizontal line as above, just walk away. Any light outside of the band is what will give you horrible visibility in snow.
A second option is to simply install some E-code headlights. Their cutoff is extremely sharp, and they are a lot better than US stuff, but they are NOT fog lights, as a LOT of the light is going downward and will bounce back up off of the snow.
Also, when driving at night, but ESPECIALLY in snow, turn your dash lights down to their lowest possible setting - and for crying out loud DO NOT put any other lighted things on the dash - guages, nav, phone, etc. Night vision is all about contrast (thus why the usual plea for more "foreground lighting" will get a lot of people killed.