I'm using a PSxMemCard Gen2 from BitFunx with the SD2PSXTD firmware and was a little disappointed by the missing provinence of availaible boot memcard images:
So here's my image, put it into MemoryCards/PS2/BOOT/BootCard-1.mcd and have fun. It contains:
To use OSD-XMB, please unpack the OSDXMB folder from the release archive to the root of your sd2psx SD card.
Feel free to use PS2 Memory Card Browser to remove stuff you don't need.