At the moment I'm done buying stuff... finally If you let us know which lenses you have we would be delighted to relieve you of that feeling
Hope this feeling lasts!
Ok I challenge you to give it a go, at the moment I feel I've covered every need I have in my style of photography. Body-wise I use the 7D for sports and zoo/wildlife, the 5D2 for everything else. (No sense in upgrading bodies - these two are a perfect match). I have grips for both and like the flexibility of being able to remove the grip when I need to reduce bulk. When I need something small I use my NEX-6. And I still have my old 400D when I need something expendable.
I'm not into portraiture or studio / product photography, and although I have a monopod and a tripod I don't like to carry them around unless I really have to. I have a Metz flash but very rarely use it. Portability and speed of operation is important for me, especially when traveling. Macro photography is limited to butterflies and the like and I find I'm using my 70-200L + extender for this more often than the 90 mm Tamron.
Lens-wise I have a nice range of L-zooms and some really satisfactory third-party primes to suit my needs, plus the old canon 35 and 50 mm for travel or small size. The 17-40 and 24-105 are great for travel and general use. I have no need for longer or faster lenses. For example the 100-400 is my motorsports lens, and for that purpose I tend to stop it down to f/9 - f/11. In long lenses I really prefer a zoom because a prime is too limiting. When I need something small/light, I've a few alternative (non-L) zooms as well to suit both full frame and/or crop.
Note that having just replaced my car helps me emphasize the need to cut down a little on photography related expenditure though... (oh wait I just upgraded the most expensive accessory - I frequently use my car to go somewhere and take photo's
Here's my lens line-up:
Samyang 14mm f/2.8 IF ED UMC Aspherical
Sigma 20mm F1.8 DG Aspherical RF
Canon EF 35mm f/2.0
Voigtländer 40mm f/2 Ultron SL-II + close-up lens
Canon EF 50mm f/1.8
Sigma 50mm F1.4 EX DG HSM
Tamron SP AF 90mm F/2.8 Di MACRO 1:1
35mm 'L' zoom:
Canon EF 17-40mm f/4L USM
Canon EF 24-70mm f/2.8L USM
Canon EF 24-105mm f/4L IS USM
Canon EF 70-200mm f/2.8L IS II USM + Canon Extender EF 1.4x II
Canon EF 100-400mm f/4.5-5.6L IS USM
Tamron SP AF 17-50mm F/2,8 XR Di II LD Aspherical [IF]
Canon EF 28-70mm f/3.5-4.5 II
Tamron SP AF 70-300mm F/4-5.6 Di VC USD
Canon EOS 400D 'kit':
Canon EF-S 18-55mm f/3.5-5.6 IS II
Canon EF-S 55-250mm f/4-5.6 IS II
Sony NEX-6 'kit':
Sony E PZ 16-50mm F3.5-5.6 OSS
Sigma 30mm F2.8 EX DN
Sony E 55-210mm F4.5-6.3 OSS