20D + 50/1.8 or EOS 300D + 35/1.4L?

I have EOS 300D and lens 28-105mm f4-5.6. I need very sharp and light photos for products ( food ) shooting. What do you say about this idea:

change the body ( buy Canon 20D + 50mm/1.8 or 50 /1.4) or add on EOS 300D good lens (35/1.4L ) ? I have about 1000 Euro to spend on that. Where I can get more quality?

first choice
get the 20D and 50mm lens

20D man. Get the 20d with the nifty fifty, use it, enjoy it, and save your cash for some sweet L glass. There is a biiiiggggggggg difference between the 300D and the 20D......

20D and 50mm f/1.4 USM

I have you considered the Rebel XT with 50mm 1.4- in the field I like the feel of the 20D better but for product shots maybe the XT would fund for a better lens and still have the 20D power

You already have the 300D. Dump money into lenses, don't worry about upgrading the body unless you absolutely require. The 300D's image quality is quite awesome, some people say it's even better than the 20D/350XT. Why? Same size, less pixel density (6MP vs 8MP). And less noise in the lower ISOs (quite negliable) such as 100, 200.

If you're shooting food, you'll have quite a bit of light control. You could easily shoot at ISO100. I'd keep your body, and save up for glass. 35/1.4 and the 50/1.4 are both awesome lenses. It just depends on how big or small the food you're shooting Also what kinda perspective... search for 35mm and 50mm shots.

OK, there is nothing wrong with the kit you have for food photography. To keep all the subject sharp you would need to stop down anyway, and most lenses are acceptably sharp at F11. Sure, get the 50mm F1.8, it's cheap and even sharper.

But for this application I recommend dropping your cash on a decent lighting setup. You could have the best camera and lenses going, but if your lighting is bad then your photographs will not excel.

I've had issues with the 50mm F1.8, I got a lot of out of focus images, after I upgraded to the 50mm F1.4 things work much better, so I can't recommend the 50mm F1.8.