Yep, so I bought a new laptop recently, my IBM/Lenovo Thinkpad T40p was slowly getting really unbearably sloooow (Celeron 1.5 GHz, 2 GB RAM max). After comparing some models I set out to buy a certain laptop in a local store, which they didn't have in stock, so I spontaneously got another model, the HP Pavilion dv7-3127eg (HP product number VY554EA).
Why this one? Well, the killer feature for me was that it has two SATA disks, hence allows me to run a RAID-1 in my laptop. This allows me to sleep better at night, knowing that the next dying disk will not necessarily lead to data loss (yes, I do still perform regular backups, of course).
Other pros: Much faster than the old notebook, this one is an AMD Turion II Dual-Core Mobile M520 at 2.3 GHz per core, it has 4 GB RAM (8 GB max), and uses an AMD RS780 / SB700 chipset which is supported by the Free-Software / Open-Source BIOS / firmware project coreboot, so this might make the laptop a good coreboot-target on the long run. I'll probably start working on that when I'm willing to open / dissect it or when the warranty expires, whichever happens first.
Anyway, I set up a page at randomprojects.org which contains lots more details about using Linux on this laptop:
Most of the hardware is supported out of the box, though I haven't yet tested everything. There may be issues with suspend-to-disk / suspend-to-RAM, sometimes it seems to hang (may be just a simple config change is needed in /etc/hibernate/disk.cfg).
Cons: Pretty big and heavy (but that's OK, I use it mostly as "semi-mobile desktop replacement"), glossy screen, loud fans (probably due to the two disks).
For reference, here's an lspci of the box:
$ lspci -tvnn -[0000:00]-+-00.0 Advanced Micro Devices [AMD] RS780 Host Bridge Alternate [1022:9601] +-02.0---+-00.0 ATI Technologies Inc M96 [Mobility Radeon HD 4650] [1002:9480] | \-00.1 ATI Technologies Inc RV710/730 [1002:aa38] +-04.0-[02-07]-- +-05.0-----00.0 Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] +-06.0-----00.0 Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] +-0a.0-[0a]-- +-11.0 ATI Technologies Inc SB700/SB800 SATA Controller [AHCI mode] [1002:4391] +-12.0 ATI Technologies Inc SB700/SB800 USB OHCI0 Controller [1002:4397] +-12.1 ATI Technologies Inc SB700 USB OHCI1 Controller [1002:4398] +-12.2 ATI Technologies Inc SB700/SB800 USB EHCI Controller [1002:4396] +-13.0 ATI Technologies Inc SB700/SB800 USB OHCI0 Controller [1002:4397] +-13.1 ATI Technologies Inc SB700 USB OHCI1 Controller [1002:4398] +-13.2 ATI Technologies Inc SB700/SB800 USB EHCI Controller [1002:4396] +-14.0 ATI Technologies Inc SBx00 SMBus Controller [1002:4385] +-14.2 ATI Technologies Inc SBx00 Azalia (Intel HDA) [1002:4383] +-14.3 ATI Technologies Inc SB700/SB800 LPC host controller [1002:439d] +-14.4-[0b]-- +-18.0 Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] HyperTransport Configuration [1022:1200] +-18.1 Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Address Map [1022:1201] +-18.2 Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] DRAM Controller [1022:1202] +-18.3 Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Miscellaneous Control [1022:1203] \-18.4 Advanced Micro Devices [AMD] K10 [Opteron, Athlon64, Sempron] Link Control [1022:1204]
Full lspci -vvvxxxxnnn, lsusb -vvv, and a much more detailed list of tested hardware components is available in the wiki.