Hi Ralf, 
 
On the TV Projector Kit, what is your shipping costs?  $6.95?   
 
On the Canadian Projector Auctions, I would change the price from $12.95 to $9.95, as Canadian and USD is about the same right now, if I recall correctly.. 
 
On the tweeters, what is your shipping costs?   Your price is a little low, so is your shipping cost high?  Like $6.45?  
 
I would add in another category or two for the tweeters sales.. 
 
Also, you have 4 UK and 2 USA..  I would do 3 UK and 3 USA.. 
 
On Powerseller.. 
 
I would change how you have it..  I would put the USA minimum bid at $34.95 to $39.95..  I would not have a reserve, as it just costs more money..  I would have the UK at 19.95 GBP, as that is about $39.95 USD..  I would have the Canadian at 39.95 on min bid..  Again, on all no reserve..  Just put the minimum you would take in the minimum bid..  I would put buy it nows on all of them.  Like even 160% of the price..  Like $59.95 BUY IT NOW on the USA one.. I would put $49.95 on the AUD and the buy it now like $69.95 AUD..  
 
I would do bolds on a few of the these.. 
 
On Real Estate: 
 
Same thing here..  No reserve.. Just put the min bid at the minimum you are willing to take..  Then, have a buy it now at about 150% the minimum bid..  
 
You could use the same prices I mentioned for the powerseller..  Would be good.. 
 
I would do bolds on a few of the these..