HP OMEN, AMD Ryzen 7, 16GB RAM, 512GB SSD + 2TB HDD, NVIDIA GeForce RTX 3070 Ti, Gaming Desktop PC £1199.99 @ Costco (Members Only)

given that hp/acer/dell use non standard mobos and PSUs, i'd say unless you badly need a machine in a hurry, avoid and avoid again. (edited)

3070 ti is currently £600 on amazon, overpriced. That leaves another £600 for the other components. I recon you could achieve a similar quality for that £600 + another £100 by sacrificing a bit of GPU for better everything else. Then spend £300 on a pretty good monitor, £100 mouse/keyboard and that still leaves £100 before getting to this price.

Props to them for using HDD in the title despite hiding the PSU and mobo. (edited)

Even if this drops below a £1000, do yourself a huge favour and go for one of sarden84 deals, even if they cost a little more you're getting much better value for money/price to performance ratio in the quality of the components used, in some cases fully adjustable bios settings that can take advantage of any cooling that you add, tweakable memory profiles, quiet under load, longevity of components not constantly running at high temperatures, and in ease of upgradability later on with non proprietary parts -

- for instance, if you want a better/inaudible CPU cooler, you have to contend with the HP using a proprietary mount on the opposite side of the motherboard, so... you have to take the computer apart... very carefully prize off the glued-on cooler mount, possibly causing damage in the process)

Trying to balance out with some positives, I don't want to be totally negative on HP; Dell and Lenovo have made some horrible cost-cutting and proprietary workarounds to try and make their computers seem like good value, also. If nothing else, I like the aesthetics of the HP Omen's often-ridiculed case and though it will thermally throttle performance during games/be excessively audible when under load because of poor cooling of components, it's fine for an office and - and I like Costco as a vendor, never had any problems with returns with them compared to a high street rival that begins with the letter C that shall remain nameless...

TLDR - much better deals from saraden84 with (usually) better quality components to eek out a little bit better performance with less thermal throttling/noise, worth a little more when they cost a little more, though with no disrespect intended to the OP, this is not a great deal, even on paper. Costco can do better, it's a bit frustrating that a lot of the computers they sell use older generation CPUs, without necessarily passing a cost saving on to the consumer, for instance 10th and 11th gen Intel i5, when 14th gen is coming out, soon.