The G25 does have a H pattern. Internally it doesn't look like it, to facilitate being a dual mode shifter but it does the job and feels like one.
Sorry but quality don't come cheap, the Logi setup is the cheapest commerical one you can buy right now. Worth every penny too IMO. If you can't justify forking out the £160 or so, it can be done on the cheap. Pick up a Logitech Wingman FF joystick (£15 on ebay), take the handle off, put a universal fit gearknob on (£10 for a cheap one), use the FFshifter software found on RSC, and bingo you have a pretty nice shifter. For a clutch pick up a cheap wheel like a MS Sidewinder from ebay (Under £10 total normally), and use the pedals for a clutch/handbrake alongside your current ones. If your looking for a main wheel/pedal set as well a DFP can be had for £50 or under these days. So thats £85 to set it up. Or you could double that figure and get a much higher quality setup with 2 year warranty, and a lot better resale value in the long run.